With the new merit system, there is no reason for them to post many posts a day. If they get no merit for them, they can't upgrade their status anyway..
Activity is still required. Once they get merit points, they can continue with shit posts.
Yes, but for the higher ranks, there is more merit required than a number of posts. So when they get enough merit, they should also have enough posts for a higher rank so the won't need to post shit posts any more,