

That’s fair, and people will use things different than the intention of the thing if it suits them. My point was more to highlight that you cannot group all things where buying and selling happen as “marketplaces” and expect the same protections/moderation etc.
This new tool is to replace the local ads/garage sale like equivalents with something self hosted. EBay is not one of these, regardless of how people choose to use it. As an auction site it is on a different level in both functional and legal experience. You cannot expect that from Craigslist, Facebook Marketplace Kijiji, or you local newspaper ads or garage sales.
When I first started learning PCs and Linux, I just went to the local thrift stores and Value Village. Even today people turn in all kinds of perfectly working compute hardware, mostly just old. Consumer stuff doesn’t retain much resale value and many cannot be bothered with trying to sell it, so it ends up in the dump, at the recyclers, in thrift stores, or on classified ads like Craig’s list, kijiji and the like.
EBay usually only sees the stuff that can fetch a worthwhile dollar.