Reddit is a cautionary tale of social sites. I'm new here, and love it so far: has there been any discussion of how to stop this splendid corner of the internets from being ruined by incoming hordes of morons?
The primary ideas seem to be: “Keep it uninteresting for the hordes of morons." Which seems to be working. Granted it does not scale, but when your not trying to make money exclusivity is a reasonable solution.