Incentives like this are not a bad idea, but instead of rolling back the privileges I think it would be better to add some kind of status bonuses depending on certain benchmarks. For example, we've discussed maybe adding color name classes. So, lets say if you've been a member for at least six months, have 500 posts and 300 rep, your name turns yellow. Then at one year, 1000 posts and 500 rep it turns orange. Something like that.