to prove they're not scammer project and minimize your investment of being scam...
1. look for the team if they're legit and real human... prove to yourself if they're human and real, not fake linkin from russia, reddit or facebook stuff...
2. list your find...
Yes you're right many scammer project using fake image and fake profile photofillo. Also many times it is seen that good projects are scammed so there will be a lot of research to be done as the amount of your capital will not decrease in future. So wake yourself up and put the scam project away.