There is also https://www.fakespot.com/ . I wonder if fake review generators are already working around these fake review detectors or if the detectors are not utilized enough for it to be worth the effort. Either way, some sort of arms race will ensue leading to a Touring-complete trans-human post-life review AI extolling the virtues of some generic USB hub.

Bot detection can be trumped by paying people per review. Even pegging user accounts to a cellphone number has been circumvented by sock puppet farms buying SIM cards by the bag.