To recap: Utena, the main character of Revolutionary Girl Utena, starts out as basically a total moron with no conception of anything around her or the matters at hand. She grows throughout the show. Unfortunately she gets taken advantage of by a villain who is basically the anthropomorphic personification of rape. Later on she gets [WARNING! HUGE FREAKING SPOILER!] stabbed with a million swords for something that somebody else did, by her own choice, because she made a self-sacrificing choice to save her [SPOILERS OVER].
The fact that somebody out there considers her a Mary Sue or a whore makes me a sad panda.