Fake Amazon reviews is a service you can buy to boost your product. Using genAI is an obvious move for these providers. Makes it harder for Amazon to find the fakes, because they can generate more content variety.

When you run a botnet for such a service, you can't only put 5 star reviews on your client's products. You want a variety of usage pattern modifiers to stay below the radar. Putting reviews on semi-random products is one technique.