nah just have to be quick, swift, good timing and intense stalking. there was a player, when zero was on the ZM server, spraying a gay porn. his name was FEDDE: Steam_0:1:32236000. i banned him for not listening to me and by zero's approval (dont like to make a mistake in front of Zero lol).
when his ban was over he came back unnoticed. i started to see those sprays agains but wasn't able to track it. so i literaly spectate each player one by one. as soon as i found out that it was FEDDE again, i figured out why i wasn't able to track his sprays before. he would log onto the server, spray and then log off immediatly (F10). and then come back to play a couple of rounds to do it again.
i remember so well when i banned him. he was in the center of the map in Minature Room, sprayed and then banned in a split second before his fat index finger reached F10 LOL. it was one of the greatest ban-feelings when playing CSS
Cal i know its hard to track. we just have to do our best. ask a fellow admin to help you out. or ask me. i like tracking people