I've seen way better snipers who will positively report everyone in the game (yes I found out that's real and I'm gonna start doing that, good karma) and say good game and mean it. So you stream a video game live. No reason to be an ass hat over it.

You shouldn't at all! I've played against him (about 6-7 months ago now) and my team was whooping his ass, got a hate message too from him and posted it on a certain site. The comment AND picture evidence was removed and I was banned from the site because I'm now allowed to show people my own personal messages for some reason.