ICO rating sites are a vital part of the ecosystem and can play an important role in guiding investors who lack the time to thoroughly research a project themselves. However, not all ICO rating websites are created equal. Currently, some ICO rating sites have very few reviews and ratings and the screening process of "experts" responsible for the reviews still require improvement. This means that a single review from a non-expert can significantly improve and ICOs rating from say 3.5 to 4.5 which may be a true reflection of the project's strength but can also easily skew reality. As with any project/product the more verified reviews by real experts the better. I do believe that in time stricter controls will have a positive effect and we will see the user base of ICO rating websites grow in numbers as well as quality.