I agree with you. When I sell I only send priority mail with signature confirmation and I make them pay, it covers me and them and have never had a complaint yet. Except 1 guy didnt read the description all the way through and marked me down on item as described. I emailed him and pointed this out and he told me he didnt see it, damage done. John
Well, as my Dad used to say: "Cheat me once shame on you; cheat me twice shame on me". Bad dealers ( in my opinion of them ) get one chance. Period.
This is two human beings negotiating with each other. The false entitlement expectation of perfection every time - or face consequences is unrealistic. Eventually you will run out of dealers and have to go back to one and eat crow.
Some buyers also won't deal with anyone even a blip under 100% feedback on ebay. Considering there are an equal number of bad buyers as there are bad sellers, I find it kind of shocking they have this mindset. I've seen an occasional buyer leave a negative because they tried to scam the seller and lose.