If an unpaid dispute is opened and closed sucessfully (ie you get your FVF back and they get a strike) then ALL negative feedback left is removed automatically.

I left a negative (well deserved, to warn other potential buyers, read on) for a seller who was listing items as genuine, I bought, was about to pay but got suspicious about an aspect of the item, made further enquiries and obtained a professional opinion from an expert that the item was 100% guaranteed to be fake. I asked the seller and they refused to cancel mutually, claimed they would send a certificate (from a non exixtent entity by the way) showing the item was genuine but that this would not be obtained until after it had been paid/sent - very suspicious too. So I left a negative as they had heaps of these listed items and were the same as the one I bought, I wanted to warn buyers off.

Neg was removed once they opened and closed an unpaid item dispute.

And before anyone brings it up, yes I would have been covered by buyer protection but it would have cost 1.5 times the original price to post it back to HK so clearly not worth the hassle.