I have not had the bad luck that Mac has had, in fact I have never had one bad deal on
ebay either as buyer or seller.
Twice when selling high value items, the buyer did not want to pay the $2 for registered and on both occasions I was suspicious. So I sent them registered at my own expense just to be sure. [Maybe annoyed them but I don't care].
I have had another problem lately which may or may not have something to do with
ebay policies and Fee changes. A high percentage of sellers will no longer ship to anywhere other than 'Westernized' nations. Israel is on those lists of 'no-go' areas and it's something very new.
Last night I found an item I rarely come across and had to plead with the seller to change his settings to allow me to bid. Thankfully he did [must have been the clownish way I pleaded with him

].
But it is a worrying trend for me, at least.
Londonbus1