green, most if not all seller's are aware that some buyers can be a pain, and eBay's MBG and Paypal's 180 day policy are certainly not going to help in that respect.

But that has nothing to do with eBay's decision to stop sellers negging buyers and bringing in the strike system which IMHO is a far better way of dealing with NPB's - for the buyers that create other problems for sellers, then leaving a +ve with neg comments which besides being a policy violation (and can lead to defects for the seller) is in reality worthless and only adds to the buyers 100% feedback.

Please read up on some of the countless threads on this subject (that has been done to death many times over), and get a better insight into the effects that retaliatory negs had on sellers when they could leave negs ( about 8 years ago now), those effects would be many many times worse now with the defect policy in place....