There's been many little cases of the mods being humongous richards, but I can remember 2 key ones:
1: There was some stuff where one of the mods turned on Notch and tried to rally an entire board to spam something of his or somewhere related to him, I can't remember what though. He even stickied the post.
2: Some guy randomly had his account deleted (for no reason, obviously) and when he made an alt and posted a topic about that THAT account was nuked and he ceased to exist once more, no explanation ever given.