Of course this is going to happen. This is no mystery. You removed the signature of so many users by demoting them to newbie. All the users and multi-account owners that were shitposting non-stop to get to 15 posts a week for the signature campaigns.
You want to make it
even better? How about this:
This is my humble suggestion: :
Have a MAXIMUM number of activities or posts for junior and Member ranked profiles in Bitcointalk per week or month.
I see people with 200+ activities and only one merit that they probably bought/scammed someone to get. THESE accounts are the real shitposters.