Add user permissions for flagging and for giving user feedback

app/models/post_flag.rb

@@ -146,6 +146,10 @@ class PostFlag < ApplicationRecord
   def validate_creator_is_not_limited
     return if is_deletion
 
+    if creator.no_flagging?
+      errors[:creator] << "cannot flag posts"
+    end
+
     if creator_id != User.system.id && PostFlag.for_creator(creator_id).where("created_at > ?", 30.days.ago).count >= CREATION_THRESHOLD
       report = Reports::PostFlags.new(user_id: post.uploader_id, date_range: 90.days.ago)
 

app/models/user.rb

@@ -61,6 +61,8 @@ class User < ApplicationRecord
     disable_post_tooltips
     enable_recommended_posts
     opt_out_mixpanel
+    no_flagging
+    no_feedback
   )
 
   include Danbooru::HasBitFlags

app/models/user_feedback.rb

@@ -101,6 +101,9 @@ class UserFeedback < ApplicationRecord
     if !creator.is_gold?
       errors[:creator] << "must be gold"
       return false
+    elsif creator.no_feedback?
+      errors[:creator] << "cannot submit feedback"
+      return false
     else
       return true
     end