Yeah, this sort of thing has sadly been a problem for awhile on Amazon. For a similar problem WRT Wikipedia, see eg https://en.wikipedia.org/wiki/User:PrimeHunter/Alphascript_P...

https://en.wikipedia.org/wiki/Wikipedia:Republishers

https://news.ycombinator.com/item?id=1183986

It's technically legal due to Wikipedia's free license, but you're paying for something you can get for free on the internet.