So I noticed that people are posting on a thread listing honest traders. Perhaps, the next stage is to write/make use of a decentralized reputation system, like a web of trust.
One thing I just though about is that often these transactions are not symmetrical in the sense that if you ship me some coins and then I ship product I could have screwed you, but you never had a chance to hurt me. So when these are reported maybe it should be noted who was the actual trusted party and who was just at mercy.
Also the rough size of the transaction is important. Fourteen successful transactions with various partners will make someone appear to be trustworthy, but if they were all <20BTC I don't want to ship first on a 3kBTC transaction.