it's too hard because few ico listing sites developer can pay them to make positif review about the project.
and developer can manipulate about the team member from ico listing, because for now ico listing site is a way for people to analysis some project, and this is the whole when developer can do what they want
I consider that kind of behaviour as scamming which completly fucks up crypto's reputation.
I just see ICOs as scams mostly, it a great shame for very few projects i miss,i can say I only know of 3 ico operations top that were legit and i still believe in.