Surely, an offer is (usually) the starting point for negotiation, even if the buyer and seller can't agree in the end, in which case a polite "no thanks" will do. If someone took the p*ss out of my offer on SC, I wouldn't deal with that seller again.
And quite frankly, there is enough bloody aggravation and provocation on here at the moment without causing more by naming and shaming! Is it too much to ask that members just exercise common sense - and don't ask me to define/explain common sense! :evil: