I sometimes hang out at a popular hackerspace in San Francisco.
Recently, a member was kicked out for several reasons, one of them being that he was caught showing a teenager how to use tools like LOIC. He claims that he was just doing this as an educational thing; but a few members who overheard him claim that he was definitely encouraging him to use it for nefarious purposes.
I've been in presence of that member at weekly meetings, and he's definitely amongst the most vocal supporters of Anonymous, offensive hacktivism, etc. I didn't think much of it until I was talking with an older member that I consider trustworthy, who told me he heavily suspected him of being an agent provocateur.
I'm not sure how likely it is, but in the face of events of like that, who knows.