I think its a good idea. I came up with this a awhile ago and was going to suggest it to the mods but since you have posted it here, I'll just glom on to yours. Could also be a section for pedal purchases that you are waiting for but have already decided your going to trade.
Feeler for my BUGGFX Daydream. Delay/ambient freaks, take notice. There's nothing else like it. I wish I enjoyed using it more, but it would be better off with someone making awesome music. Too strange and wonderful to describe, take a listen
Would trade for a Friedman BE-OD or Catalinbread Dirty Little Secret.