I was trying to figure out what the scammer gets out of this because the chances are that with something as blatant as this, Amazon will kill their account before any payment is made.
The only thing I could come up with that made a lick of sense was:
1) Blackhat Conman sells a service which guarantees to get a book (any book) into the charts based on borrows and possibly also guarantees a number of page-reads. For this he charges a fixed amount. Let's say $300 per book
2) Gullible would-be scammer is happy to pay the $300 because he sees how much money he will make via page-reads. And sure enough his KDP dashboard looks like a goldmine. He is so pleased he goes back and places more orders with the Blackhat conman.
3) Some time later, Amazon brings down the hammer on Gullible would-be scammer, and closes his account before he actually gets a payment .
Blackhat Conman is okay because he already has his money. He doesn't rely on Amazon to pay him.
There might be other explanations but I'm struggling to think of one unless of course Amazon doesn't close down accounts like this quickly enough, and Gullible would-be scammer does actually get the cash - which would be too insane to contemplate.