Writer's Block: Banned, uh...Ba-Specified!
Has anyone ever unfriended you without explanation? Did you ask why? Have you ever deleted someone from your friend list without saying why?
I do, however, have a rule where I'll unban anyone a year after I've banned them, although it still hasn't been a year since the first person I ever banned was banned (April 8, 2009). I've also unbanned a couple of people early because they proved to be saner than I thought.