evm is a mini mod thing thats floating around.. i wouldnt know since ive never really tried it for more than 10 seconds then hitting the delete button -_-
as for getting banned off the source code, well, in esf, if pcjoe and the team decided you were ruining the community, he would punch up your IP into the code with a ban script that'll stop you from playing the game outright, every time you'd try to join/make a server it'll autokick you off it with the script, making playing the game impossible, either that or they'll put your IP into the official servers and you'll be autokicked from them, nobody has needed to be punished to this extent, but its possible..so dont become too much of a bother =)