Where would you rank THIS behavior?
You see a new forum, with some potentially interesting content -- but you also see that "some guy" who apparently doesn't have anything BETTER to do is basically "haunting" the forum, has an opinion about everything anyone else posts, has racked up ten times the number of posts of anyone else on the forum. Do you say "thank goodness for an 'ignore' list", do you simply "vote with your feet" and find somewhere else to get that same content, do you private-message the person and suggest [whatever changes come to mind, up to and including "get a life..."]?