diff --git a/app/models/badge.rb b/app/models/badge.rb
index af0c054d66a..ed97216c782 100644
--- a/app/models/badge.rb
+++ b/app/models/badge.rb
@@ -1,9 +1,6 @@
 # frozen_string_literal: true
 
 class Badge < ActiveRecord::Base
-  # TODO: Drop in July 2021
-  self.ignored_columns = %w{image}
-
   include GlobalPath
   include HasSanitizableFields
 
diff --git a/app/models/category.rb b/app/models/category.rb
index ad5a662a356..57a15bc62d8 100644
--- a/app/models/category.rb
+++ b/app/models/category.rb
@@ -5,11 +5,6 @@ class Category < ActiveRecord::Base
     'none'
   ]
 
-  # TODO(2020-11-18): remove
-  self.ignored_columns = %w{
-    suppress_from_latest
-  }
-
   include Searchable
   include Positionable
   include HasCustomFields
diff --git a/app/models/directory_column.rb b/app/models/directory_column.rb
index 3a290432c2f..aa4324345a3 100644
--- a/app/models/directory_column.rb
+++ b/app/models/directory_column.rb
@@ -2,8 +2,6 @@
 
 class DirectoryColumn < ActiveRecord::Base
 
-  # TODO(2021-06-18): Remove automatic column
-  self.ignored_columns = ["automatic"]
   self.inheritance_column = nil
 
   enum type: { automatic: 0, user_field: 1, plugin: 2 }, _scopes: false
diff --git a/app/models/email_token.rb b/app/models/email_token.rb
index 1178352523a..77156125e53 100644
--- a/app/models/email_token.rb
+++ b/app/models/email_token.rb
@@ -35,9 +35,6 @@ class EmailToken < ActiveRecord::Base
     end
   end
 
-  # TODO(2022-01-01): Remove
-  self.ignored_columns = %w{token}
-
   def self.scopes
     @scopes ||= Enum.new(
       signup: 1,
diff --git a/app/models/embeddable_host.rb b/app/models/embeddable_host.rb
index 212348bc3d1..6b2d2a9b4bd 100644
--- a/app/models/embeddable_host.rb
+++ b/app/models/embeddable_host.rb
@@ -10,9 +10,6 @@ class EmbeddableHost < ActiveRecord::Base
     self.host.sub!(/\/.*$/, '')
   end
 
-  # TODO(2021-07-23): Remove
-  self.ignored_columns = ["path_whitelist"]
-
   def self.record_for_url(uri)
 
     if uri.is_a?(String)
diff --git a/app/models/invite.rb b/app/models/invite.rb
index 52c0a97b425..ff4a4521e1d 100644
--- a/app/models/invite.rb
+++ b/app/models/invite.rb
@@ -8,12 +8,6 @@ class Invite < ActiveRecord::Base
   include RateLimiter::OnCreateRecord
   include Trashable
 
-  # TODO(2021-05-22): remove
-  self.ignored_columns = %w{
-    user_id
-    redeemed_at
-  }
-
   BULK_INVITE_EMAIL_LIMIT = 200
   DOMAIN_REGEX = /\A(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)+([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])\z/
 
diff --git a/app/models/post.rb b/app/models/post.rb
index 04df7e932fc..5db38ad4a7c 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -10,11 +10,6 @@ class Post < ActiveRecord::Base
   include HasCustomFields
   include LimitedEdit
 
-  self.ignored_columns = [
-    "avg_time", # TODO(2021-01-04): remove
-    "image_url" # TODO(2021-06-01): remove
-  ]
-
   cattr_accessor :plugin_permitted_create_params, :plugin_permitted_update_params
   self.plugin_permitted_create_params = {}
   self.plugin_permitted_update_params = {}
diff --git a/app/models/topic.rb b/app/models/topic.rb
index 1a6948c6cc6..751a82a5327 100644
--- a/app/models/topic.rb
+++ b/app/models/topic.rb
@@ -11,11 +11,6 @@ class Topic < ActiveRecord::Base
   include LimitedEdit
   extend Forwardable
 
-  self.ignored_columns = [
-    "avg_time", # TODO(2021-01-04): remove
-    "image_url" # TODO(2021-06-01): remove
-  ]
-
   def_delegator :featured_users, :user_ids, :featured_user_ids
   def_delegator :featured_users, :choose, :feature_topic_users
 
diff --git a/app/models/topic_timer.rb b/app/models/topic_timer.rb
index 2a9a690adef..5e80b5d4edd 100644
--- a/app/models/topic_timer.rb
+++ b/app/models/topic_timer.rb
@@ -3,10 +3,6 @@
 class TopicTimer < ActiveRecord::Base
   MAX_DURATION_MINUTES = 20.years.to_i / 60
 
-  self.ignored_columns = [
-    "duration" # TODO(2021-06-01): remove
-  ]
-
   include Trashable
 
   belongs_to :user
diff --git a/app/models/topic_user.rb b/app/models/topic_user.rb
index 4f6b7853dde..dcb0f294164 100644
--- a/app/models/topic_user.rb
+++ b/app/models/topic_user.rb
@@ -1,10 +1,6 @@
 # frozen_string_literal: true
 
 class TopicUser < ActiveRecord::Base
-  self.ignored_columns = [
-    :highest_seen_post_number # Remove after 01 Jan 2022
-  ]
-
   belongs_to :user
   belongs_to :topic
 
diff --git a/app/models/upload.rb b/app/models/upload.rb
index d0611ba84af..29c2b5d60c2 100644
--- a/app/models/upload.rb
+++ b/app/models/upload.rb
@@ -3,10 +3,6 @@
 require "digest/sha1"
 
 class Upload < ActiveRecord::Base
-  self.ignored_columns = [
-    "verified" # TODO(2020-12-10): remove
-  ]
-
   include ActionView::Helpers::NumberHelper
   include HasUrl
 
diff --git a/app/models/user_api_key.rb b/app/models/user_api_key.rb
index d0238781bc7..f20e75c575f 100644
--- a/app/models/user_api_key.rb
+++ b/app/models/user_api_key.rb
@@ -1,10 +1,6 @@
 # frozen_string_literal: true
 
 class UserApiKey < ActiveRecord::Base
-  self.ignored_columns = [
-    "scopes" # TODO(2020-12-18): remove
-  ]
-
   REVOKE_MATCHER = RouteMatcher.new(actions: "user_api_keys#revoke", methods: :post, params: [:id])
 
   belongs_to :user
diff --git a/app/models/user_stat.rb b/app/models/user_stat.rb
index 7d0093eeadc..89abd01e0ce 100644
--- a/app/models/user_stat.rb
+++ b/app/models/user_stat.rb
@@ -4,9 +4,6 @@ class UserStat < ActiveRecord::Base
   belongs_to :user
   after_save :trigger_badges
 
-  # TODO(2021-05-13): Remove
-  self.ignored_columns = ["topic_reply_count"]
-
   def self.ensure_consistency!(last_seen = 1.hour.ago)
     reset_bounce_scores
     update_distinct_badge_count