Technically, that's impossible. Anyway, I'm not using my facebook account for signing a petition to fight something that won't bear any fruit anyway. Companies aren't going to stop producing a moneymaker just because a small, whiny portion of the fanbase doesn't like the ending. No government's are going to associate fandom with morality. There's literally nothing these guys can do but be drenched in their salty tears. Let them stew in their misery.