OK, I'm bored....
Seeing the Kinks or Beatles poll nest to this 'ere board reminded of a wonderfully pointless messageboard game.
Simple really - Pose a question as "a or b?" Next person answers it and poses one of their own.
Explanations are optional, but you must always answer a question and you must always ask a question. The last version of this I saw had well over 2000 replies. I'll be impressed if you lot can catch up with the screaming thread
Metallica or Megadeth?