Sorry to offer criticism, but this is the most unethical thing I've ever seen. Not only that, the market for this sort of trading is already stitched up by eBay, and they do it better by not being so blatant about the source of the discount.

So this product actually does a worse job than eBay - that's no mean feat.

I know sometimes game-changers come about by pushing ethics around - but this is morally wrong in so many different ways I'm struggling to express it.

Purely out of interest, I'd love to meet the person or people who came up with this, but only so I could do my grumpy old man bit about the "me" generation.