On my lower-priced eBay sales and on other platforms, when I get a request to authorize a return I don't even make them destroy it. I just give them a full refund and tell them to keep it and do what they want with it.
I get some very nice feedback for doing that and it is some of the best advertising I can get for the price. I also get a lot of repeat business from those same buyers.
Sure, I bet I do get scammed once in the while, but my return rate, to begin with, is very, very low so even if 100% were scams, you can't buy that kind of goodwill and positive feedback at any price.