I figure hatred for the people who did those things drives them a lot. It may also be out of a sense of duty too as they think no one else is really going to do anything about it.There's some parts of the forums here I can't stomach going on, like Million Pity or the Zoosadist thread. I don't know how the Kiwis there do the work they do (they've actually had a real legal effect on their subjects, God bless them), that shit just makes me cry.