I don't want to take sides, here, but it is very easy to misinterpret events, and fill in the details.
Ebay is somewhat of a frontier, and there are just as many unscrupulous buyers as there are sellers. I have learned a few lessons, and have had to carefully craft some stock disclaimers to add to my listings so that I don't get screwed by some yokel who comes back and tries to cry foul.
Gsxr's grammar is not so good. That could really hurt him on ebay, as people are always trying to parse out your listing to take advantage of you.
Also, as I follow the link, it is very clear to me that I, as the buyer, will pay for shipping, and that if I want to know how much that will add to my cost, I can calculate it easily.
The rest could be chalked up to poor communication, or a breakdown in communication between two parties with whom I have no contact.
Certainly not enough evidence for me to take the buyer's side and start spreading gossip about the seller.