If you were playing an MMO and received an item in your mailbox that said, “Use: Kills all enemies in a 30 yard radius,” what would you do? Would you report it? Return it? Or would you use it to one-shot the toughest bosses in the game?
A player of WoW did the latter, and it showed up in his list of achievements as well. If you can’t believe that such things exist, this is a developer’s tool for use in testing. It goes without saying that it should never get into the hands of a player.