Personally I feel that you're being a bit too optimistic. LulzSec was much louder about the fact they did it for the 'lulz' rather than for any noble agenda. Encouraging people to log in to random people's FB account and ruin their relationships serves no purpose. Interestingly enough @Anon_central recently tweeted a qualification about their supporters (which has a great overlap with LulzSec), which to me shows that you're being too optimistic [1]. Especially considering that Anon is supposed to be more ethical compared to LulzSec..

[1] https://twitter.com/#!/Anon_Central/status/87402917006557184