This problem: "Second part of the factorial sum divisibility question" had a 500-point bounty on it, posted by a user 'caveman'. Just now I noticed that 'caveman' is gone, and the bounty has been awarded to Gottfried Helms. What happened here? Did Gottfried kill caveman for the bounty? That's what I'd think if I woke up and one of my colleagues was gone, and another colleague had all his money!
Edit: The revision history suggests that the bounty was awarded automatically by Community, only two days after the bounty period started. That sounds all sorts of wrong... so, what happened?