[Kuiper]

This is apparently how older Kindle models worked, which has made them an attack vector for fraud on Kindle Unlimited:

>KDP [Kindle Direct Publishing, Amazon's self-publishing platform] pays authors for both paid downloads as well as for pages read and it doesn’t sense reading speed, just the highest number of pages reached. ...

>The way that the book-stuffing con works is that scammers stuff lots of extra content into an ebook before uploading it to Kindle Unlimited, and then trick readers into jumping to the end of the book.

>Thanks to a flaw in the Kindle platform, namely that the platform knows your location in a book but not how many pages you have actually read, the scammers can get paid for a user having “read” a book in Kindle Unlimited by getting the user to jump to the last page. ...

>Interestingly, the flip-to-end scam doesn’t quite work on newer Kindles but still works on older, non-updated Kindles which makes it still a lucrative scam.

https://techcrunch.com/2018/06/11/notorious-kindle-unlimited...