The concept of those services whose objective is to provide a place to find reliable reviews may have worked in previous days, but nowadays manipulating those reviews and shilling is a whole underground industry run for and by shady people. The only way I see a review webpage having some reliability would be if they somehow implemented Your your Client policies, to try to only publish reviews from actual users of those services.

However, obviously those KYC processes will likely turn away people who just wish to share their own personal experience with one or two products. The best way to stay save while choosing a casino or any service which deal with money is to ask for advice in other places.