Posted By:
steve fDave,
I disagree, only upon closing of a satisfactory deal should feedback be posted. ie payment and item recieved by both parties. Feedback is a courtesy, not mandatory.
As a buyer, I leave feedback for exceptional service regardless of what the seller does.
As a seller, it is foolhardy to leave a feedback first. Negatives do little, if any harm to a buyers standing, but can be detrimental to the seller's reputation. my 2 cents