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 really know about the specific price they take for raging but I know the collecte fee for rating ico and I have participate in an ico where icosite rate high and they end up to be scam, so I don't tink icosite is the best way to know the legelity for a project.