im in with what trululu says, this should be task of moderators, lets remember that sometimes the answer with most upvotes could be totally wrong, misleading or so, also could be the best answer? yes, but best answer can be undo, instead u can't erase upvotes from a bad answer. if needed i guess an option to get other answers first (later answers, most votes, etc) i could be in, but by default u should see the answer that *should* be correct, not really the one most liked.