Firstly, it’s fascinating because he seems to buy all sorts of strange stuff, from fantastically expensive damaged zoom lenses to 500 foot of bandsaw blade. And he never sells any of it. At least, not under that name.
But the other thing that interests me is the correctness of publishing the list of purchases. Certainly I find it very useful to help to establish the trustworthiness of a seller, but does that give me the right to see it? You could argue that the fact that they have a pseudonymous ID protects them – but it only takes one slip to blow that out of the water permanently.
And if its OK to show purchases (and sales), then why stop there? Why should I not be able to retrieve their entire bidding history? Or all their Paypal transactions?
My default answer to these questions is simple: no, its wrong to show any of this information. Unless you can anonymise it, don’t publish it. But eBay wouldn’t, I suspect, work unless this kind of stuff was available to buyers.
Its an interesting dilemma.