I don't think claiming everything early is petulant, no. As you've also pointed out, I'm not town itself, so my claim only affects my standing in the game. Instead of waiting for it to become an issue I claimed everything too so I mean...
Like what would you have me do here? I'm not going to threaten to throw the game because I'm upset I got voted. The worst you can say is I claimed too much. But that's not really my problem, if it ends up affecting town well that's what the people wanted. And if I die early, oh well. In case it wasn't obvious, I don't exactly hope to be in this game for too long anyway.