As for me, all the ICO I used to joined were listed to an ICO review, though the ratings has no effect for me on choosing a project to support.
Ratings given by third party websites should only be used (if actually used) as additional information, and not an essential one, for investors. Personally, I do my own research, and make my own ratings first, scan my ratings, and research results many times. When I felt satisfied with what I finished, I will look at ratings from other sources, and find out which factors cause differences between mine and those ratings.