Sarcasm is an adjusted stress reaction.

Yeah, mocking teenage girls or pearl-clutching about how they're reading stuff like Twilight is bad, but Tumblr goes the whole way in the other direction and is like "Teenage girlspeak is revolutionizing the language and communication just like Shakespeare did!" I shit you not, there's an actual post like that going around. And I'm just like....you know, not-mocking something does not mean pretending that it's made out of solid gold, either. It's such an extreme environment.