Fuck No I won't sign it. PETA is one of, if not the worst "charities" out there. They rank up there with the Sierra Club and GreenPeace in their suckness.
I'm all for Greenpeace. Takes some cojones (if not brains) to go out in a boat and do... something well meaning, if not well thought out. PETA, now, well, they're just a giant pustule of suck.
What I can't help wondering is: What sort of genius thinks it's a good idea to either post, or respond to, some fucking petition on XXXPorn Talk?