Consumers seeking rare high-end items have a plethora of online resale platforms to facilitate their search: Poshmark, eBay, The RealReal, Rebag, Mercari, Depop, Etsy, Vestiaire, Grailed, Farfetch, 1stDibs, Fashionphile... the list goes on. But even if buyers find what they're looking for, they're all too often disappointed when their purchase arrives in the mail. The...