Starbird said:
So yeah - where do you stand on this? Why do you think this stuff is so ingrained in certain online communities? Does it just come with the territories or is it learned behavior resulting from a
combination of anonymity and a lack of moderation?
First off, I'm going to start off with some definitions, because this kind of discussion is prime territory for vagueness to be misinterpreted. When I say "trash talk", what I'm referring to would perhaps be better referred to as "banter". This would be things like, upon a successful gank in a MOBA, the ganker takes to chat to say "Get owned!", or upon being killed in a shooter, the killee says "Oh it's on now *****!", etc. This is the kind of emotional, competitive language I mean when I say "trash talk".
And by and large, while I don't see it as "essential", I do view it as a fairly important/prominent aspect of competition and/or team comradery. This is a healthy and productive outlet of the emotions that build up in competitive environments, and it exists in pretty much every competitive expression of human behavior. It's not something that needs to end at all. If anything, stopping trash talking will remove a quick and harmless outlet for the emotional stress competition creates, which could very easily end in being expressed in a non-harmless fashion.
That said, "trash talk" can very easily morph into abuse over the internet. The online disinhibition effect [http://en.wikipedia.org/wiki/Online_disinhibition_effect] is very much a thing, and it's the main cause of the kind of outrageous behavior we see in trolls or even simply heated discussion on the internet. This is just as present in online games as it is on forums or Twitter or whatever, and it causes people to tend to escalate much farther and much faster than they would in a face-to-face setting. That's when there's a problem, and it should be called out as such whenever anyone sees it happen.
TLDR: Trash talk isn't a problem. The internet and its impact on human behavior is.