[Carnage]

i think probably the best way of doing this, would be copying some of the code from options.php in the admincp into a new file in the mod cp changing it to allow access to supermods, and restricting the settings group to only allow changes to the banning options group.

Giving access to all the banning options gives access to the coventry feature as well as email banning (if they were continually coming back they would be most likly using free email accounts banning @hotmail.com for a few hrs might help) the coventry feature is also quite nice in dealing with spammers and flamers. since adding them to this stops their posts from being displayed thus they aren't going to be annoying anyone, once they get bored and go away you can mass prune their posts and ban the accounts.

i'll put something together if someone else hasn't done so next time i check back here.