Keep it civil, do not flame or bait other users. If you notice anything illegal or inappropriate being discussed, contact an administrator or moderator.
If the sanctity of voting has been indubitably compromised, as in certain obvious cases witnessed here, perhaps the score "slate" should be wiped clean as it were, in other words, the vandalism scrubbed and the image locked against future score manipulation, i.e. by preventing scoring of any sort, or perhaps just any score that is not a positive one, the lack of a score or at least of a high score, then, would serve as the measure or indication of user disapprobation.