ICO rating websites aren't all true on their jobs ,they sometimes get paid for rating from developers ,I won't rely on them if I were you , project listing in ICO rating websites or not doesn't state the fact that its not a scam project, there are some good signs that good projects used to have.
yup, most of them are paid expert user on that website to make fake rating about thier project to increase the star, for example look at KryptoRedeem project that launch their ICO and getting about 4 / 5 rating on
ICObench but look at them now, the project website cant be access and admin on telegram has been inactive about month , the project is totally dead right now.
so we cant really trust ICO project that having big rating on ICO rating website like this, we need to do our own research about the project like who's the people behind the project & how the project work.