Not exactly the same though related: IIRC there's another scam on Amazon where people self-publish some ebooks which are clearly gibberish, put a massive price

Not exactly the same though related: IIRC there's another scam on Amazon where people self-publish some ebooks which are clearly gibberish, put a massive price tag on it, and use hacked accounts to buy them. Very low effort and essentially free money, because no physical goods are involved. It's been discussed here a year ago or so.