diff --git a/app/logical/google_big_query/post_version.rb b/app/logical/google_big_query/post_version.rb
index e430841f0..e3e670466 100644
--- a/app/logical/google_big_query/post_version.rb
+++ b/app/logical/google_big_query/post_version.rb
@@ -20,13 +20,6 @@ module GoogleBigQuery
       "regexp_match(removed_tags, \"(?:^| )#{es}(?:$| )\")"
     end
 
-    def find_for_post(post_id, created_at)
-      post_id = post_id.to_i
-      btime = created_at.strftime("%Y-%m-%d 00:00:00", created_at)
-      etime = 1.day.from(created_at).strftime("%Y-%m-%d 00:00:00")
-      "select updater_id, added_tag from [danbooru_#{Rails.env}].post_versions_flat_part where _partitiontime >= #{btime} and _partitiontime <= #{etime} and post_id = #{post_id}"
-    end
-
     def find(user_id, added_tags, removed_tags, min_version_id, max_version_id, limit = 1_000)
       constraints = []
 
diff --git a/app/logical/post_keeper_manager.rb b/app/logical/post_keeper_manager.rb
deleted file mode 100644
index 26fc22e23..000000000
--- a/app/logical/post_keeper_manager.rb
+++ /dev/null
@@ -1,168 +0,0 @@
-class PostKeeperManager
-  def self.enabled?
-    PostArchive.enabled?
-  end
-
-  def self.queue_check(post_id)
-    delay(queue: "default").check_and_update(post_id)
-  end
-
-  # in general, unweighted changes attribution 5% of the time,
-  # weighted changes attribution 12% of the time at w=1000,
-  # up to 17% of the time at w=100.
-  def self.evaluate(post_ids)
-    total = 0
-    matches = 0
-    weighted_matches = 0
-    keeper_dist = {}
-    uploader_dist = {}
-    Post.where(id: post_ids).find_each do |post|
-      keeper = check(post)
-      total += 1
-      if keeper != post.uploader_id
-        matches += 1
-        # keeper_dist[keeper] ||= 0
-        # keeper_dist[keeper] += 1
-        # uploader_dist[post.uploader_id] ||= 0
-        # uploader_dist[post.uploader_id] += 1
-      end
-      if check_weighted(post) != post.uploader_id
-        puts post.id
-        weighted_matches += 1
-      end
-    end
-
-    puts "total: #{total}"
-    puts "unweighted changes: #{matches}"
-    puts "weighted changes: #{weighted_matches}"
-    # puts "keepers:"
-    # keeper_dist.each do |k, v|
-    #   puts "  #{k}: #{v}"
-    # end
-    # puts "uploaders:"
-    # uploader_dist.each do |k, v|
-    #   puts "  #{k}: #{v}"
-    # end
-  end
-
-  def self.check_and_update(post_id)
-    post = Post.find(post_id)
-    keeper_id = check(post)
-    CurrentUser.as_system do
-      post.update_column(:keeper_data, {uid: keeper_id})
-    end
-  end
-
-  def self.print_weighted(post, w = 1000)
-    changes = {}
-    final_tags = Set.new(post.tag_array)
-
-    # build a mapping of who added a tag first
-    PostArchive.where(post_id: post.id).order("updated_at").each do |pa|
-      pa.added_tags.each do |at|
-        if pa.updater_id
-          if !changes.has_key?(at) && final_tags.include?(at)
-            changes[at] = pa.updater_id 
-          end
-
-          if pa.source_changed? && pa.source == post.source
-            changes[" source"] = pa.updater_id
-          end
-        end
-      end
-    end
-
-    # add up how many changes each user has made
-    ranking = changes.values.uniq.inject({}) do |h, user_id|
-      h[user_id] = changes.select {|k, v| v == user_id}.map do |tag, user_id|
-        count = Tag.find_by_name(tag).try(:post_count) || 0
-        1.0 / (w + count)
-      end.sum
-      h
-    end
-
-    ranking.sort_by {|k, v| v}.each do |user_id, score|
-      user = User.find(user_id)
-      sum = changes.select {|k, v| v == user_id}.size
-      Rails.logger.debug "#{user.name}: %.4f (%d)" % [score, sum]
-    end
-  end
-
-  def self.check_weighted(post, w = 1000)
-    changes = {}
-    final_tags = Set.new(post.tag_array)
-
-    # build a mapping of who added a tag first
-    PostArchive.where(post_id: post.id).order("updated_at").each do |pa|
-      pa.added_tags.each do |at|
-        if pa.updater_id
-          if !changes.has_key?(at) && final_tags.include?(at)
-            changes[at] = pa.updater_id 
-          end
-
-          if pa.source_changed? && pa.source == post.source
-            changes[" source"] = pa.updater_id
-          end
-        end
-      end
-    end
-
-    # add up how many changes each user has made
-    ranking = changes.values.uniq.inject({}) do |h, user_id|
-      h[user_id] = changes.select {|k, v| v == user_id}.map do |tag, user_id|
-        count = Tag.find_by_name(tag).try(:post_count) || 0
-        1.0 / (w + count)
-      end.sum
-      h
-    end
-
-    ranking.max_by {|k, v| v}.first
-  end
-
-  def self.check(post)
-    changes = {}
-    final_tags = Set.new(post.tag_array)
-
-    # build a mapping of who added a tag first
-    PostArchive.where(post_id: post.id).order("updated_at").each do |pa|
-      # Rails.logger.debug "archive #{pa.id}"
-      pa.added_tags.each do |at|
-        # Rails.logger.debug "  checking #{at}"
-        if pa.updater_id
-          if !changes.has_key?(at) && final_tags.include?(at)
-            # Rails.logger.debug "    adding #{at} for #{pa.updater_id}"
-            changes[at] = pa.updater_id 
-          end
-
-          if pa.source_changed? && pa.source == post.source
-            # Rails.logger.debug "    adding source for #{pa.updater_id}"
-            changes[" source"] = pa.updater_id
-          end
-        else
-          # Rails.logger.debug "    no updater"
-        end
-      end
-
-      # easy to double count trivial changes if a user is just fixing mistakes
-      # pa.removed_tags.each do |rt|
-      #   Rails.logger.debug "  checking -#{rt}"
-      #   if pa.updater_id
-      #     if !changes.has_key?("-#{rt}") && !final_tags.include?(rt)
-      #       Rails.logger.debug "    adding -#{rt} for #{pa.updater_id}"
-      #       changes["-#{rt}"] = pa.updater_id
-      #     end
-      #   else
-      #     Rails.logger.debug "    no updater"
-      #   end
-      # end
-    end
-
-    # add up how many changes each user has made
-    ranking = changes.values.uniq.inject({}) do |h, user_id|
-      h[user_id] = changes.select {|k, v| v == user_id}.size
-      h
-    end
-
-    ranking.max_by {|k, v| v}.first
-  end
-end
diff --git a/app/models/post.rb b/app/models/post.rb
index 4b64fb497..21005a2c6 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -57,37 +57,15 @@ class Post < ApplicationRecord
   has_many :favorites
   has_many :replacements, class_name: "PostReplacement", :dependent => :destroy
 
-  if PostKeeperManager.enabled?
-    serialize :keeper_data, JSON
-  end
-
   if PostArchive.enabled?
     has_many :versions, lambda {order("post_versions.updated_at ASC")}, :class_name => "PostArchive", :dependent => :destroy
   end
 
   attr_accessible :source, :rating, :tag_string, :old_tag_string, :old_parent_id, :old_source, :old_rating, :parent_id, :has_embedded_notes, :as => [:member, :builder, :gold, :platinum, :moderator, :admin, :default]
-  attr_accessible :is_rating_locked, :is_note_locked, :has_cropped, :keeper_data, :as => [:builder, :moderator, :admin]
-  attr_accessible :is_status_locked, :keeper_data, :as => [:admin]
+  attr_accessible :is_rating_locked, :is_note_locked, :has_cropped, :as => [:builder, :moderator, :admin]
+  attr_accessible :is_status_locked, :as => [:admin]
   attr_accessor :old_tag_string, :old_parent_id, :old_source, :old_rating, :has_constraints, :disable_versioning, :view_count
 
-  concerning :KeeperMethods do
-    included do
-      before_create :initialize_keeper
-    end
-
-    def keeper_id
-      keeper_data ? keeper_data[:uid] : uploader_id
-    end
-
-    def keeper
-      User.find(keeper_id)
-    end
-
-    def initialize_keeper
-      self.keeper_data = {uid: uploader_id}
-    end
-  end
-
   module FileMethods
     extend ActiveSupport::Concern
 
@@ -654,11 +632,6 @@ class Post < ApplicationRecord
       if decrement_tags.any?
         Tag.decrement_post_counts(decrement_tags)
       end
-
-      if PostKeeperManager.enabled? && persisted?
-        # no need to do this check on the initial create
-        PostKeeperManager.queue_check(id)
-      end
     end
 
     def set_tag_count(category,tagcount)
diff --git a/app/views/posts/partials/show/_information.html.erb b/app/views/posts/partials/show/_information.html.erb
index f6fad113f..5a6ab8ade 100644
--- a/app/views/posts/partials/show/_information.html.erb
+++ b/app/views/posts/partials/show/_information.html.erb
@@ -1,9 +1,6 @@
 <ul itemscope itemtype="http://schema.org/ImageObject">
   <li>ID: <%= post.id %></li>
-  <li>Tagger: <%= link_to_user(post.keeper) %></li>
-  <% if CurrentUser.is_moderator? %>
-    <li>Uploader: <%= link_to_user(post.uploader) %></li>
-  <% end %>
+  <li>Uploader: <%= link_to_user(post.uploader) + "&nbsp;".html_safe + link_to("&raquo;".html_safe, posts_path(:tags => "user:#{post.uploader.name}"), :rel => "nofollow") %></li>
   <li>
     Date: <%= link_to time_ago_in_words_tagged(post.created_at), posts_path(:tags => "date:#{post.created_at.to_date}"), :rel => "nofollow" %>
     <meta itemprop="uploadDate" content="<%= post.created_at.iso8601 %>">
diff --git a/db/migrate/20180116001101_add_keeper_data_to_posts.rb b/db/migrate/20180116001101_add_keeper_data_to_posts.rb
deleted file mode 100644
index e7edcd1e6..000000000
--- a/db/migrate/20180116001101_add_keeper_data_to_posts.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddKeeperDataToPosts < ActiveRecord::Migration
-  def change
-    add_column :posts, :keeper_data, :text
-  end
-end
diff --git a/test/models/post_keeper_manager_test.rb b/test/models/post_keeper_manager_test.rb
deleted file mode 100644
index fa37f4937..000000000
--- a/test/models/post_keeper_manager_test.rb
+++ /dev/null
@@ -1,77 +0,0 @@
-require 'test_helper'
-
-class PostKeeperManagerTest < ActiveSupport::TestCase
-  subject { PostKeeperManager }
-
-  context "#check_and_update" do
-    setup do
-      Timecop.travel(1.month.ago) do
-        @system = FactoryGirl.create(:user)
-        User.stubs(:system).returns(@system)
-        @alice = FactoryGirl.create(:user)
-        @bob = FactoryGirl.create(:user)
-        @carol = FactoryGirl.create(:user)
-      end
-      PostArchive.sqs_service.stubs(:merge?).returns(false)
-
-      CurrentUser.scoped(@alice) do
-        @post = FactoryGirl.create(:post)
-      end
-      CurrentUser.scoped(@bob) do
-        Timecop.travel(2.hours.from_now) do
-          @post.update_attributes(tag_string: "aaa bbb ccc")
-        end
-      end
-      CurrentUser.scoped(@carol) do
-        Timecop.travel(4.hours.from_now) do
-          @post.update_attributes(tag_string: "ccc ddd eee fff ggg")
-        end
-      end
-    end
-
-    should "update the post" do
-      subject.check_and_update(@post.id)
-      @post.reload
-      assert_equal({"uid" => @carol.id}, @post.keeper_data)
-    end
-  end
-
-  context "#check" do
-    setup do
-      Timecop.travel(1.month.ago) do
-        @system = FactoryGirl.create(:user)
-        User.stubs(:system).returns(@system)
-        @alice = FactoryGirl.create(:user)
-        @bob = FactoryGirl.create(:user)
-        @carol = FactoryGirl.create(:user)
-      end
-
-      CurrentUser.scoped(@alice) do
-        @post = FactoryGirl.create(:post)
-      end
-    end
-
-    should "find the most frequent tagger for a post" do
-      assert_equal(@alice.id, subject.check(@post))
-    end
-
-    context "that is updated" do
-      setup do
-        CurrentUser.scoped(@bob) do
-          Timecop.travel(2.hours.from_now) do
-            @post.update_attributes(tag_string: "aaa bbb ccc")
-          end
-        end
-        CurrentUser.scoped(@carol) do
-          Timecop.travel(4.hours.from_now) do
-            @post.update_attributes(tag_string: "ccc ddd eee fff ggg")
-          end
-        end
-      end
-
-      should "find the most frequent tagger for a post" do
-        assert_equal(@carol.id, subject.check(@post))
-      end
-    end
-  end
-end