Anon had (sort of) taken credit on twitter, but the message was quickly replaced with "We cant confirm anything because we'll lose our accounts again."

I see.

Now the cynic in me wonders if they're genuinely involved or taking advantage of the fact that everyone basically assumes it's them. ;)

Anon is somewhat taking credit: http://twitter.com/#!/anonops/status/14068450506833922

That link 404s for me. Copy+paste error?

'Sorry, that page doesn’t exist!'?

Sorry. Anon pulled it, then posted another statement saying that they couldn't confirm for fear of losing their accounts again. Screenshot of the original tweet in the post on TNW.

we've just included a screenshot of it in the post