Actually, like ICO rankings, it really helps us in making project choices. However, we also have to be careful and do re-research. Some of my projects were successful because I got them from the ICO ranking website. And of course I checked it again, so I didn't get a fraud project.
doing repeated research and looking for deeper information is also important besides the Team that follows the ICO. teams that already have good achievements will find it easier to find opportunities for success. if the team is famous and knows everything, it will avoid fraud. Believing or not being there for anyone is your right so it's up to you
Ofcourse most of us who are venturing on the crypto currency must know every single thing about the ICO that we will invest.
We should always check the credibility of the people who are working on the ICO or the project that you are trying to invest with, so as I see
everyone should really take cautious approach about every ICO and to not trust every ICO ranking or rating sites cause most of it are paid Sites
to boost the ICO popularity.