I didn't vote on this because none of the answers apply to me. No, I don't answer them all, but it's not because I feel like "why should I have to". Sometimes PM's don't warrant a reply (ie go look at this, come talk to me online tonight, end of a conversation), and, for example, when Bassett was sick, I didn't have the energy to always reply to every message. If I couldn't, I would try to post something on the threads about her that applied to anyone who had sent something to me.