Handful of comments-

- There was a CC thread tracking what successful trades had gone down. That, IMO, is as good as any way of tracking "value".

- I like the idea of "no comments in the thread unless you are wanting to participate in the deal".

- What's the difference between a gift card and a fare voucher with a dollar value, for practical purposes, other than an expiration date? And I'd argue a fare voucher is a very good example of something you might want to swap because you can't use it.