I trust a new altcoin when i see the following requirements has been fulfilled:
- Whitepaper with full Information including legit documents and brief.
- Legal documents(for example: Registration under Estonia law, SEC, Chamber of Commerce etc)
- Good Team member with reputation.
- Good advisors with reputation.
- Good working product
- Background of the company(optional)
- Road Map
- Background info of the whole team
- GitHub code
So, when I see this info is fulfilled I trust the new altcoin.