This...
I think it's a side effect of the "not my fault" generation.
LOL this has been going on longer than our generation.
It is merely a side effect of the Online gaming persona. I can say anything over the intardnet and feel big and bad with my skillzz and no one knows who I really am.
P.S It would literally kill me inside if I didn't know who shot me down and a long entertaining fight, or something like that.
The key is, most people are going to talk chit. You just have to tell them they are dipchits and then squelch them.