Over at AGW the entire community had MG on ignore (as you can imagine), and they discussed this fact in threads constantly..then, whenever he'd start a thread, he'd get 500 anti MG posts by the very people who professed to have him on ignore, usually starting with "I ordinarily have MG on ignore, but took him off long enough to read this thread..."
It seems easy enough to just ignore someone you find boring, or stupid, or uninformed without making a big production out of it.