I never had any doubt in my mind it was Anonymous behind the attacks because of the exact reasons the original poster said: it's not some governed body, it's just a random group of people hacking things. while one person MAY have done it, it doesn't mean Anonymous as a collective did it. hell, I doubt most of anonymous wanted anything to do with the original attacks and that, too, was a small group speaking for the collective.
That's just the way they work. Anonymous is an idea more than an actual organized group.
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