This sound comes from the karma system in the Fallout games, where player actions can raise or lower moral standing. The Bad Karma cue became useful outside the games because it instantly signals that a person did something wrong, selfish or darkly funny. Online, creators use it in gameplay montages, reaction edits and skits to give ordinary moments an RPG-style judgment. Its appeal lasts because the meaning is clear in a fraction of a second, especially for gaming audiences.