They seem biased to me. A friend of mine who's doing an ICO told me that they paid 10ETH for 5 quality ratings and that's that! I noticed that some ICOs with good project, team, and good social media presence are struggling with getting good reviews.
With all that said, should it still be a factor to look at when investing in ICO?
I don't trust Ico Rating Sites, I could use them to know or get initial informations about an Ico and its timeline, but definitely not for my jurisdiction about the project, In the light of a lot of malpractices in the ICO rating platforms, it is more important than ever for investors to conduct their own research before investing in a new blockchain project. Relying solely on ICO ratings could lead investors to place funds into mediocre projects or even into ICO scams that simply paid for good ratings and reviews. Hence, the old cryptocurrency investing acronym DYOR (do your own research) cannot be overemphasized.