Of course they're using tor, i doubt they'd have the ability to do the damage they've done without also having the common sense not to get caught.
Yeah, I have no doubt they are using tor (or something else along those lines), just pointing out how fruitless going after them on Twitter is (plus at least with twitter knowing what they are going after/went after is easy to know)
I have to admit, as an up-and-coming psychologist I find Anonymous and LulzSec to be utterly fascinating as examples of (supposedly) leaderless social movements.