Only to then find someone else‘s notes starting on page 13.
Seems dark patterns are not enough anymore, and they opt now for outright fraud.
In this way when your order Acme Widget A from vendor X you could be randomly getting stock from vendor C's items (which are knock offs), Vendor "acme"'s items which are the actual company items or vendor Z's items which they have setup to toss back into their stock from returns with little if any checking).
This optimization provides warehouse "leveling" allowing Amazon to ship local products faster without needing to ensure each vendor splits tock or shipping via warehouse/warehouse but obviously builds in a huge carrot to game the system for vendors and makes it hard to have checks that identify the actual problem vendors.