You know how on a license you start with a number of points and if you break a driving law you lose some and if you run out you get your license revoked. Well I think this should be in this site. When you make an account you start with a certain number of points and every time you break a rule eg. Profanity, Spam you lose points. Also some people can gain points by good behavior.
Hope you consider it :)
Sincerly: Speed Freak