That's just ridiculous. First of all, I don't know how a dumb idea for a community like that has so many members. Talk about bad karma and ways to transfer traumatic childhood feelings onto people they've never even met. I wouldn't pay too much attention to it. You shouldn't even check it. Look, you're bound to have people added that aren't honest, and it's terribly creepy that they'd take time to write bad things about you, yet sadly real... Just don't give it any importance. If anything you should consider doing a friend's cut and take anyone off that you might not trust... no point in keeping people that don't seem interested in your life and posts.

How deliciously controversial though, if anything I'd try to take it as something positive, and be flattered :)