No one can downvote after 24 hours I don't think... "4 August 2007: Protection against karma bombing A few days ago a user methodically downmodded several oth

No one can downvote after 24 hours I don't think... "4 August 2007: Protection against karma bombing A few days ago a user methodically downmodded several other users' old comments to kill their karma. To prevent this happening in future, the downarrow now disappears off comments more than a day old. Also the karmas and story/comment scores affected have been restored to whatever they would have been without those downvotes."