This guy is just geniunely trolling, and being an idiot. I've banned one of his accounts and muted three more for trolling me, the yell, and also Valve's video recordings. [He can back me up on this.]
Proof shown below of how sick and tired we got of him:
1)
2)
3)
4)
I got so sick and tired of him. He also wrote this in chatbox:
I have given him too many warnings. I would like Guardian/Squad to take action please.