The guy called "Source", joining the CHDM server and hacking everyday, he already been banned for wall hack, kicked a couple times for commands spamming.
Here's the dem:
http://speedy.sh/QPSmp/source.dem

Wow so blatant

[Riser]

Please use team chat and type "@hacker in here" to alert any admin that is online.

I'll review the demo in a second.

Edit: Please provide Steam ID next time by typing status into console.

BANNED