"The alternative to the hierarchical power structure is based on mutual aid and group consensus. As hackers we can learn these systems, manipulate these systems, and shut down these systems if we need to."
'Group consensus' is not anarchist. That's collectivist. In any case, he didn't have group consensus, except his tiny group of hackers. His own actions were anti-group consensus.
In any case, I'm not so sure I believe his portrayal by the FBI or the arstechnica. Did ARS use third party sources or just the FBI mouthpiece?