diff --git a/app/controllers/modqueue_controller.rb b/app/controllers/modqueue_controller.rb
index d4a09104f..264f44b06 100644
--- a/app/controllers/modqueue_controller.rb
+++ b/app/controllers/modqueue_controller.rb
@@ -4,7 +4,7 @@ class ModqueueController < ApplicationController
 
   def index
     authorize :modqueue
-    @posts = Post.includes(:appeals, :disapprovals, :uploader, flags: [:creator]).pending_or_flagged.available_for_moderation(search_params[:hidden])
+    @posts = Post.includes(:appeals, :disapprovals, :uploader, flags: [:creator]).pending_or_flagged.available_for_moderation(CurrentUser.user, hidden: search_params[:hidden])
     @posts = @posts.paginated_search(params, order: "modqueue", count_pages: true)
 
     @modqueue_posts = @posts.except(:offset, :limit, :order)
diff --git a/app/logical/post_query_builder.rb b/app/logical/post_query_builder.rb
index 6c4556c3c..6c98545d4 100644
--- a/app/logical/post_query_builder.rb
+++ b/app/logical/post_query_builder.rb
@@ -288,7 +288,7 @@ class PostQueryBuilder
     when "active"
       Post.active
     when "unmoderated"
-      Post.pending_or_flagged.available_for_moderation
+      Post.pending_or_flagged.available_for_moderation(current_user, hidden: false)
     when "all", "any"
       Post.all
     else
@@ -868,7 +868,19 @@ class PostQueryBuilder
     end
 
     def count_cache_key
-      "pfc:#{to_s}"
+      if is_user_dependent_search?
+        "pfc[#{current_user.id.to_i}]:#{to_s}"
+      else
+        "pfc:#{to_s}"
+      end
+    end
+
+    def is_user_dependent_search?
+      metatags.any? do |metatag|
+        metatag.name.in?(%w[upvoter upvote downvoter downvote search flagger fav ordfav favgroup ordfavgroup]) ||
+        metatag.name == "status" && metatag.value == "unmoderated" ||
+        metatag.name == "disapproved" && User.normalize_name(metatag.value) == current_user.name
+      end
     end
   end
 
diff --git a/app/models/post.rb b/app/models/post.rb
index dbee7b602..4c8d800e5 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -1453,7 +1453,7 @@ class Post < ApplicationRecord
       from(relation.arel.as("posts"))
     end
 
-    def available_for_moderation(hidden = false, user = CurrentUser.user)
+    def available_for_moderation(user, hidden: false)
       return none if user.is_anonymous?
 
       approved_posts = user.post_approvals.select(:post_id)
diff --git a/test/unit/post_disapproval_test.rb b/test/unit/post_disapproval_test.rb
index 879679c05..8def746e1 100644
--- a/test/unit/post_disapproval_test.rb
+++ b/test/unit/post_disapproval_test.rb
@@ -35,8 +35,8 @@ class PostDisapprovalTest < ActiveSupport::TestCase
           end
 
           should "remove the associated post from alice's moderation queue" do
-            assert(!Post.available_for_moderation(false).map(&:id).include?(@post_1.id))
-            assert(Post.available_for_moderation(false).map(&:id).include?(@post_2.id))
+            assert(!Post.available_for_moderation(CurrentUser.user, hidden: false).map(&:id).include?(@post_1.id))
+            assert(Post.available_for_moderation(CurrentUser.user, hidden: false).map(&:id).include?(@post_2.id))
           end
         end
 
@@ -47,8 +47,8 @@ class PostDisapprovalTest < ActiveSupport::TestCase
           end
 
           should "not remove the associated post from brittony's moderation queue" do
-            assert(Post.available_for_moderation(false).map(&:id).include?(@post_1.id))
-            assert(Post.available_for_moderation(false).map(&:id).include?(@post_2.id))
+            assert(Post.available_for_moderation(CurrentUser.user, hidden: false).map(&:id).include?(@post_1.id))
+            assert(Post.available_for_moderation(CurrentUser.user, hidden: false).map(&:id).include?(@post_2.id))
           end
         end
       end
diff --git a/test/unit/post_query_builder_test.rb b/test/unit/post_query_builder_test.rb
index 8878c3afb..e3eb07629 100644
--- a/test/unit/post_query_builder_test.rb
+++ b/test/unit/post_query_builder_test.rb
@@ -1153,5 +1153,15 @@ class PostQueryBuilderTest < ActiveSupport::TestCase
         end
       end
     end
+
+    context "for a user-dependent metatag" do
+      should "cache the count separately for different users" do
+        @user = create(:user, enable_private_favorites: true)
+        @post = as(@user) { create(:post, tag_string: "fav:#{@user.name}") }
+
+        assert_equal(1, PostQueryBuilder.new("fav:#{@user.name}", @user).fast_count)
+        assert_equal(0, PostQueryBuilder.new("fav:#{@user.name}").fast_count)
+      end
+    end
   end
 end