don't redirect to rfc for experimental groups and hide the button for them

lib/user_group_separator.rb

@@ -24,4 +24,15 @@ class UserGroupSeparator
     end
   end
 
+  def self.getRequestforCommentGroup(user)
+    lastDigitId = user.id % 10
+    if lastDigitId < 2 # 0,1
+      :hide_rfc
+    elsif lastDigitId < 4 # 2,3
+      :stale_rfc
+    else # 4,5,6,7,8,9
+      :show_rfc
+    end
+  end
+
 end