I totally agree it is an UNFAIR system when sellers are unable to leave neg. feedback for buyers who often leave the most damaging UNFAIR and UNWARRANTED feedback. Buyers can threaten, blackmail etc etc then leave neg. feedback. No negative feedback can then be left for the buyer. The whole ebay / paypal system is weighted in favour of the buyer.

So you follow up your negs with professional responses then turn around & yell abuse in capital letters at them in your postive feedback left for them ???:O:O