rate limits for topics and posts on first day

max_topics_in_first_day and max_replies_in_first_day

app/models/post.rb

@@ -17,6 +17,7 @@ class Post < ActiveRecord::Base
   versioned if: :raw_changed?
 
   rate_limit
+  rate_limit :limit_posts_per_day
 
   belongs_to :user
   belongs_to :topic, counter_cache: :posts_count
@@ -54,6 +55,12 @@ class Post < ActiveRecord::Base
     @types ||= Enum.new(:regular, :moderator_action)
   end
 
+  def limit_posts_per_day
+    if user.created_at > 1.day.ago && post_number > 1
+      RateLimiter.new(user, "first-day-replies-per-day:#{Date.today.to_s}", SiteSetting.max_replies_in_first_day, 1.day.to_i)
+    end
+  end
+
   def trash!(trashed_by=nil)
     self.topic_links.each(&:destroy)
     super(trashed_by)

app/models/site_setting.rb

@@ -66,6 +66,9 @@ class SiteSetting < ActiveRecord::Base
   setting(:flags_required_to_hide_post, 3)
   setting(:cooldown_minutes_after_hiding_posts, 10)
 
+  setting(:max_topics_in_first_day, 5)
+  setting(:max_replies_in_first_day, 10)
+
   setting(:num_flags_to_block_new_user, 3)
   setting(:num_users_to_block_new_user, 3)
   setting(:notify_mods_when_user_blocked, false)

app/models/topic.rb

@@ -183,6 +183,9 @@ class Topic < ActiveRecord::Base
   # Additional rate limits on topics: per day and private messages per day
   def limit_topics_per_day
     RateLimiter.new(user, "topics-per-day:#{Date.today.to_s}", SiteSetting.max_topics_per_day, 1.day.to_i)
+    if user.created_at > 1.day.ago
+      RateLimiter.new(user, "first-day-topics-per-day:#{Date.today.to_s}", SiteSetting.max_topics_in_first_day, 1.day.to_i)
+    end
   end
 
   def limit_private_messages_per_day