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...
You're right. Project team members must have real LinkedIn profiles and all information must be clear. Never trust project without team information. Also, they must have some related experiences with project products, in crypto and finance field.