IMHO, Buyers should be able to leave negative feedback without fear of retaliation, otherwise the whole feedback system is rather pointless. If buyers are afraid to leave honest feedback, what is the point of the entire system? Though I'm sure there will be buyers out there that take advantage of this (and this is a shame) there are so many sellers out there now that take advantage of the fact that they can hold feedback hostage to see what's left for them, buyers are afraid to give honest feedback. So where do you side, with the seller or with the buyer? I've worked in customer service in one form or another for all my life and personally I think protection should lean towards the buyer.