Very interesting. I looked at the feedback as a Seller. Not too much, until I looked at the items he "sold". These are all posted as "more than a year ago." It seems that he had a happy buyer for the first transaction:

Then, the next buyer:

And yet another happy buyer (notice that the item number matches the previous one):

Finally, a dissatisfied customer:

Interesting how many copies of a "rare" item they actually had.