eBay Has Become The Pirate Bay
Over the years, I've had three eBay ID's. eBay used to allow logins from a single-sign on provider at some point (though I can't remember which) and I used that. Then they removed that feature and I had to change my ID. I made several transactions under the new ID. Now, a few years later, eBay will no longer recognize that ID and I had to create a new one. What is the problem with a new ID, you ask?