Would you trust your details in the hands of Anonymous?
I know I wouldn't.
I can't see joining this as a good idea. First of all, what is the point of a social network where you are anonymous? Secondly, the group behind it is less than reputable; I doubt it is the same group behind the hackings, but I still don't know who they are or why I should trust them (especially since they deliberately play on the shady side of anon and state a vague intention not to conform to any rules); and thirdly, I'm pretty sure that if anonymity is assured and it really is a shady network, I'm pretty sure it will be used for all kinds of dodgy and illegal things that I wouldn't want to be directly involved in.