I know temp banning innocent people is a silly idea.
This should never be used...
Well, I have another idea. Instead loading server cleaner, or drags in a row, load some nascar map (one of previous ones) and at the time of racing kick/tempban all misbehaving players.
Noobs will be confused and will think nascar already started earlier; some of them may even leave eventually (?). But this will require some effort from admnins. Let's say load it 3:40 uk time, run for 15 minutes, kick everyone who deserves it, and then load drags and then load actual map.
What do you think of that?