I've seen "fear of Mary Sueage" used as a club to try to get writers to dumb down their own, original fiction characters.

Oh, that's awful. That sounds like people don't know how to create original characters -- because you have to have some reason to like the character you end up with, so that your reader will, too. There's a reason why all the fairy tales have beautiful wealthy princesses, etc., etc.

Icarus