The September listing of discount postage stamps on the Japanese e-commerce site Mercari seemed a great buy to Sherri Hartman of suburban Indianapolis.
Hartman wondered why they were being offered at such a low cost.
“I thought, ‘It’s amazing,'” she told me in a telephone interview. “I justified it in my mind as being with COVID, businesses are closing and there was a business that shut down, but had bought a bunch of stamps and wanted to unload them to recover some of their money.”
When her order arrived by priority mail from Cayucos, California, a coastal town north of San Luis Obispo, Hartman became suspicious.