I've never liked sakura as a character, aside from being useless, she is ungrateful (did she ever thank naruto for saving her life?) and perhaps too erratically emotional at times (well thats not necessarily a bad thing, but seeing it soo much just....annoys the hell out of me.)

In any case, i consider her past the point where she can be redeemed as a character. But if Kishimoto can somehow pull that off, then i salute him.