Thank you for bringing this up!
Currently, while the demo you made may be excellent and show him BLATANTLY hacking, we still cannot allow demos from people other than admins. But even though we do not accept the demos You got us the steam ID and he will we on watch for him to pop back in the server. If you see him on again, please contact us again via forums/IRC/ or steam friends. I’m usually on IRC and would be happy to find an admin to help you out or you can add me: ctptrick19 and I will be able to help faster.