But eBay is just bad company with a bad reputation. Why would they buy it instead something like Etsy or make their own thing? If you would ask me what are the worst companies from the “old guard” I would name eBay and PayPal as prime suspects.
Because Etsy is not a general second-hand marketplace. Its niche is artisans making small batch items. And making your own thing at the scale of ebay is not exactly a small feat.
Etsy used to have strict limitations on what was allowed to be sold. I'm not sure how effective it was, but since that restriction has been removed, you're right, they'll list anything. Etsy has become a graveyard for dropshipped garbage, and the odd CD key, apparently! CD keys I can get behind.
