Reading reviews could, and actually does, save those who take the time to read them, time and money. Take for example someone who wants to buy something from a site and you find out that some of the sellers on the site have lots of negative feedback. There are lots of complaints on the net about them. If you take a look at that feedback you may be less willing to buy anything from the who sellers or sites which got negative ratings/feedback. Want to avoid getting scammed? Read reviews. All the time.