acceptable: sometimes only 15 comments, sometimes more than that. ac is more often than not made incidentally through engaging with the game and enjoying rping than trying to "make ac".

not acceptable: only 15 comments every time, threads are always dropped after reaching AC length, ac is always made purposefully by tagging with the sole intent of making ac rather than having fun with the game.

there is no way to 100% quantify this behavior, it's a "you know it when you see it" situation.