Signature campaigns inside the Bounty campaigns are the actual reason behind the reduction of quality posts even after the Merit system implementation and also the later 1-Merit Jr. member implementation. And that is because they are still operating in the old ways where even Jr. members are allowed to join and get paid for posting shit all around, while on the other side, Bitcoin Signature Campaigns are not accepting users below Full member rank maintaining to keep the campaigns spam free.
We won't see any big differences in the posting behaviors of the entire forum as long as this Shitposter's Recruitment Process is underway.