diff --git a/app/models/emoji_reaction.rb b/app/models/emoji_reaction.rb
index 80d92c2424..011e593bfd 100644
--- a/app/models/emoji_reaction.rb
+++ b/app/models/emoji_reaction.rb
@@ -28,6 +28,7 @@ class EmojiReaction < ApplicationRecord
 
   has_one :notification, as: :activity, dependent: :destroy
 
+  validate :status_same_emoji_reaction
   validate :status_emoji_reactions_count
 
   after_create :refresh_cache
@@ -53,6 +54,12 @@ class EmojiReaction < ApplicationRecord
     query
   end
 
+  def status_same_emoji_reaction
+    if status && account && status.emoji_reactions.where(account: account).where(name: name).where(custom_emoji_id: custom_emoji_id).any?
+      raise Mastodon::ValidationError, I18n.t('reactions.errors.duplication')
+    end
+  end
+
   def status_emoji_reactions_count
     if status && account && status.emoji_reactions.where(account: account).count >= EMOJI_REACTION_PER_ACCOUNT_LIMIT
       raise Mastodon::ValidationError, I18n.t('reactions.errors.limit_reached')
diff --git a/app/models/status.rb b/app/models/status.rb
index da7b0a2a13..562efc57ae 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -315,6 +315,10 @@ class Status < ApplicationRecord
     status_stat&.emoji_reactions_count || 0
   end
 
+  def emoji_reactions_count_per_account
+    status_stat&.emoji_reactions_count_per_account || 0
+  end
+
   def increment_count!(key)
     update_status_stat!(key => public_send(key) + 1)
   end
@@ -342,7 +346,7 @@ class Status < ApplicationRecord
 
   def refresh_emoji_reactions_grouped_by_name!
     generate_emoji_reactions_grouped_by_name.tap do |emoji_reactions_json|
-      update_status_stat!(emoji_reactions: emoji_reactions_json, emoji_reactions_count: emoji_reactions.size)
+      update_status_stat!(emoji_reactions: emoji_reactions_json, emoji_reactions_count: emoji_reactions.size, emoji_reactions_count_per_account: emoji_reactions.map(&:account_id).uniq.size)
     end
   end
 
diff --git a/app/models/status_stat.rb b/app/models/status_stat.rb
index 0f651959f1..cdee95855b 100644
--- a/app/models/status_stat.rb
+++ b/app/models/status_stat.rb
@@ -4,16 +4,17 @@
 #
 # Table name: status_stats
 #
-#  id                    :bigint(8)        not null, primary key
-#  status_id             :bigint(8)        not null
-#  replies_count         :bigint(8)        default(0), not null
-#  reblogs_count         :bigint(8)        default(0), not null
-#  favourites_count      :bigint(8)        default(0), not null
-#  created_at            :datetime         not null
-#  updated_at            :datetime         not null
-#  emoji_reactions       :string
-#  emoji_reactions_count :integer          default(0), not null
-#  test                  :integer          default(0), not null
+#  id                                :bigint(8)        not null, primary key
+#  status_id                         :bigint(8)        not null
+#  replies_count                     :bigint(8)        default(0), not null
+#  reblogs_count                     :bigint(8)        default(0), not null
+#  favourites_count                  :bigint(8)        default(0), not null
+#  created_at                        :datetime         not null
+#  updated_at                        :datetime         not null
+#  emoji_reactions                   :string
+#  emoji_reactions_count             :integer          default(0), not null
+#  test                              :integer          default(0), not null
+#  emoji_reactions_count_per_account :integer          default(0), not null
 #
 
 class StatusStat < ApplicationRecord
@@ -41,6 +42,10 @@ class StatusStat < ApplicationRecord
     [attributes['emoji_reactions_count'], 0].max
   end
 
+  def emoji_reactions_count_per_account
+    [attributes['emoji_reactions_count_per_account'], 0].max
+  end
+
   private
 
   def reset_parent_cache
diff --git a/app/models/trends/statuses.rb b/app/models/trends/statuses.rb
index 110c3da045..d808b817be 100644
--- a/app/models/trends/statuses.rb
+++ b/app/models/trends/statuses.rb
@@ -97,7 +97,7 @@ class Trends::Statuses < Trends::Base
   def calculate_scores(statuses, at_time)
     items = statuses.map do |status|
       expected  = 1.0
-      observed  = (status.reblogs_count + status.favourites_count + status.emoji_reactions_count * 0.3).to_f
+      observed  = (status.reblogs_count + status.favourites_count + status.emoji_reactions_count_per_account * 0.8).to_f
 
       score = if expected > observed || observed < options[:threshold]
                 0
diff --git a/app/views/auth/registrations/new.html.haml b/app/views/auth/registrations/new.html.haml
index 0d8fd800f9..5149ecbac1 100644
--- a/app/views/auth/registrations/new.html.haml
+++ b/app/views/auth/registrations/new.html.haml
@@ -37,6 +37,9 @@
   .fields-group
     = f.input :agreement, as: :boolean, wrapper: :with_label, label: t('auth.privacy_policy_agreement_html', rules_path: about_more_path, privacy_policy_path: privacy_policy_path), required: true
 
+  %div
+    = t('auth.cloudflare_with_registering')
+
   .actions
     = f.button :button, @invite.present? ? t('auth.register') : sign_up_message, type: :submit
 
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 233926c680..1a9a340015 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -994,6 +994,7 @@ en:
   auth:
     apply_for_account: Request an account
     change_password: Password
+    cloudflare_with_registering: With cloudflare on auth
     confirmations:
       wrong_email_hint: If that e-mail address is not correct, you can change it in account settings.
     delete_account: Delete account
@@ -1422,6 +1423,7 @@ en:
     title: Privacy Policy
   reactions:
     errors:
+      duplication: Cannot react same things
       limit_reached: Limit of different reactions reached
       unrecognized_emoji: is not a recognized emoji
   relationships:
diff --git a/config/locales/ja.yml b/config/locales/ja.yml
index c9c1016fdc..fa09ac8545 100644
--- a/config/locales/ja.yml
+++ b/config/locales/ja.yml
@@ -976,6 +976,7 @@ ja:
   auth:
     apply_for_account: アカウントのリクエスト
     change_password: パスワード
+    cloudflare_with_registering: 登録時にCloudflareの画面が表示されます。登録できないときは tt@kmycode.net までご連絡ください
     confirmations:
       wrong_email_hint: メールアドレスが正しくない場合は、アカウント設定で変更できます。
     delete_account: アカウントの削除
@@ -1395,6 +1396,7 @@ ja:
     title: プライバシーポリシー
   reactions:
     errors:
+      duplication: 同じリアクションを複数行おうとしました
       limit_reached: リアクションの種類が上限に達しました
       unrecognized_emoji: は絵文字として認識されていません
   relationships:
diff --git a/db/migrate/20230414010523_add_emoji_reactions_count_per_account_to_status_stats.rb b/db/migrate/20230414010523_add_emoji_reactions_count_per_account_to_status_stats.rb
new file mode 100644
index 0000000000..8a3eba8b2c
--- /dev/null
+++ b/db/migrate/20230414010523_add_emoji_reactions_count_per_account_to_status_stats.rb
@@ -0,0 +1,5 @@
+class AddEmojiReactionsCountPerAccountToStatusStats < ActiveRecord::Migration[6.1]
+  def change
+    add_column :status_stats, :emoji_reactions_count_per_account, :integer, null: false, default: 0
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 991cfaf140..02b1025332 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2023_04_12_073021) do
+ActiveRecord::Schema.define(version: 2023_04_14_010523) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -936,6 +936,7 @@ ActiveRecord::Schema.define(version: 2023_04_12_073021) do
     t.string "emoji_reactions"
     t.integer "emoji_reactions_count", default: 0, null: false
     t.integer "test", default: 0, null: false
+    t.integer "emoji_reactions_count_per_account", default: 0, null: false
     t.index ["status_id"], name: "index_status_stats_on_status_id", unique: true
   end