I would say just blocking the member is a dumb idea. Just because they might be a jerk to you doesn't mean they don't have good advice from time to time for one's eyes to view on the forum. Can't you split the block to only PMs?

It doesn't matter to me because I don't get PMs from people and if I do it takes me forever to reply. Although I have a feeling that Eyes on YOU is about to make a comeback soon. OOOOOH SO SOON!