Somehow, I see both sides of the issues with amibay. They don't want ebay dealers coming there buying amiga gear for cheap and then robbing people with crazy prices for it on ebay.
I know they have banned a few people for doing exactly that (Not saying those here did so, but I know of a few users for a fact who bought on amibay, jacked up the price they got it for x10 and went right to ebay with the gear.)
All this being said I don't think you can decide what people can do with what they own... If someone buys something they have the right to resell it at whatever price they can, and thats the freedom they are trying to take away from their buyers...
Steven
