Obviously there is also some bad UX thrown in for good measure (being able to write a review without being able to send it), but we aren’t necessarily looking at dark patterns here.
This could just be Amazon struggling with and failing at a task (avoiding fake reviews).
Not all bad UX is a dark pattern, sometimes it’s just bad UX … (a dark pattern is bad UX with a positive consequence for the person or company offering up the UI or maybe just and intended positive consequence, even if the UI doesn’t achieve that goal)
I think it’s a stretch to argue that Amazon is really benefiting from any of this and long term this erosion of trust is not at all good for Amazon. I do honestly think that if Amazon could snap with their fingers and remove all fake reviews they would do it. (Which is not to say that Amazon does not employ dark patterns elsewhere.)