I think it boils down to miscommunication or misdirection if you will, for example when i first started on ebay i had no information from ebay what exactly to do, i operated by what was told to me (word of mouth).
Same thing when i first sold on ebay, ebay did not realy give me any real indication on how to list, how to block certain countrys i didn't want to post to, ect ect, thankfully though it was around this time that i found the boards (quite by fluke), it then dawned on me that the people on the boards were more helpfull than ebay itself.
I think that ebay need to educate the buyer and seller, plus make its trading platform fairer.