Even without people gaming or buying reviews the 2, 3 and 4 star reviews tend to be more thoughtful about what is and isn't good about the product. One of the

Even without people gaming or buying reviews the 2, 3 and 4 star reviews tend to be more thoughtful about what is and isn't good about the product. One of the reasons why the "5* rating or your driver gets fired" norms encouraged by the likes of Uber are so awful.