Such a case would be rather unfortunate, but the chances of an abuser that you describe,
Saucepan, being a member with a
heavy weight are slim. I can hardly see anyone on that list doing something like that, so the system has be engineered to be very difficult to abuse because these random reppers won't have much effect on anything.
Perhaps your anonymous reps were from people who enjoyed your post, but couldn't think of how to put their feelings into words and consequently forgot to sign it since they wrote nothing else.
At the worst case, I have a feeling that these abusers will disappear like
BW's "wizard" did some time ago.