Anonymous is anonymous, they have no 'leader', it defies the whole point of them. Any one person can say they acted on behalf of anonymous for any reason.
When someone in anonymous says it wasn't them it means it wasn't talked about between 1000's of people in a IRC chat before hand. Which makes sense as it is just a limited number of people that need to be involved.
People that 'represent' anonymous and are present in their IRC channels are mostly of limited hacking experiance and are normally teens off 4chan. Whoever did this also did it for personal gain, not to help 'consumers' as anon said was the reason for the attack.
What they fail to understand is that this hurts consumers not helps. The fact is that the average PS3 owner does not care about homebrew/cfw, they do not care about linux, they do not care about geohot or anyone else Sony is suing, they do not care about backups. They DO care about PSN, their CC details, the economy and their privacy.
I think I talk on behalf of a large chunk of the PS3 population in saying that geohot, other PS3 hackers, anonymous and people running CFW on their PS3 have negatively effected our PS3, the gaming experience and more (the financial pressure Sony is under has already forced them to sack some people).
So thank you (sarcasm intended)! It's just a shame that this ego-driven PS3 'scene' does not seem to notice or care about the average person, just themselves and trying to 'get one over' the PUBLIC COMPANY that is Sony. I emphasize public company because most of these same people seem to forgot Sony is a PUBLIC company. Not a single person, it is owned by normal people, normal people work there and all the time normal people come and go.