This is "pudding" on ESR, the guy responsible for the DDoS. He is a bitter german CA reject going by the name of deuce or sth like that. He can be found spending most of his time spectating Clan Arena matches and occasionally playing himself (hes around 1600 elo skill level, judging from what I've seen).

Also has Vac bans and Game bans. Anyway, obviously it had to be a German who only plays CA, nobody else could be that bitter.

Just thought I'd share this information. Im not even a fan of Zlive, but they do stream interesting matches.