I have seen firsthand the effect of wrong comments (I have written them) being upvoted more than the correcting responses that came afterwards. So yeah, it can happen with humans too, on occasion.
Sure and there's no real way around that other than community norms to downvote/whatever corrected replies and upvoting the correction. HN makes that a bit hard by locking voting away from so many people but I think it works better than open voting probably.
