Here's some extremely anecdotal information that MySpace is done. Over. Fad. Done.
(I'm just posting this sign of the apocalypse as early as possible so I can pre-jump the inevitable pronouncements that something has been jumped.)
Why did they quit MySpace? Miss School Spirit wasn't specific, but I think she was tired of the experience. And, since she is a song girl at school, there was probably also the creep factor that is beginning to characterize the site. As for Mr. Pop Culture, I've let him explain why, in his own words, below.
TAD'S TAB: Why did I quit MySpace? Because it is a parasite feeding off the egos and self-esteem of millions of teenage girls and boys. It's also an addiction: I find myself unconsciously typing in its URL every time I turn on Firefox. That's why yesterday I decided to escape from its clutches. Impulsively, I deleted my account.