Interesting comments, but I buy and sell on ebay so all this "buyers" and "sellers" stuff is just a different side of the same coin. I think that the buyers obligation is to pay promptly for the goods that is what I expect when I am sellling an item. That is when I leave feedback because they have completed their part of the bargain. When I am the buyer I leave feedback once the item has arrived. Afterall the seller is judged on their service. I don't see why it is necessary to wait until the goods have been received or is it in case negative feedback is left, then the seller can be petty and leave negative feedback in response. I have a 100% rating, pay immediately and communicate with either the buyer or the seller depending on the circumstances. I fail to see why I should be worried about leaving negative feedback becaue I am not happy with the seller. I tend not to leave feedback if I am unhappy to avoid the possibility of unfairly receiving the same because I may upset the seller.
On another issue am I the only person who objects to paying exorbitant postage charges. Every now and again ebay try to remedy the situation and all is well, then it all starts again. I have just had someone in Victoria tell me it costs $15 to send a pair of pants to Qld, because they don't have many sizes of envelopes where they are from.