Ah: "The end game here in many cases is for the seller to be able to pose as a verified purchaser and write a glowing review of their own product". Seems obvious now.
In both of those cases they seem to line up with the theory of unscrupulous resellers wanting to bump fake reviews, but in neither case the victims are financially worse off through fraudulent transactions
This isn't that. In the thread's article the author said someone stole their identity and used their credit card to order these things from an Amazon account they don't control. That isn't what your link describes.