Looking at a recent cheat it seems that part of the cheat is to name flood the server meaning its hard to trace the STEAMID to the name of the cheat.
I would love to see some sort of script that limits them to change their name to once every 10 seconds, if they try to change their name again it goes to 20 seconds then if again to 30 seconds etc. Much like the text flood command inbuilt into HLDS.