While I think that people would be interested in trades, I don't think a separate community for only trades would be necessary just yet. Maybe in a couple of months when the community grew big enough that trade requests/offers would otherwise get buried under newer posts, but as it is now I think it's better just post requests/offers here... maybe with a separate tag indicating interest in trades?

Could we do a pinned thread for trades for now then if it gets big enough go from there?