To detect scam you basically have to think like a scammer. So what will a typical scammer do?
Try to find
1.Unclear concept of the project
2.Last-minute website or a purchased one even without changes in design
3.Fictive and incompetent team
4.No feedback or a vast number of fake comments and profiles
5.Bad community and troubles with bonuses
do your research before connecting with that projects.
Great guidelines. Most of the time, these scam projects dont have a real world purpose or some dont even mention what they do. Alot talk about ROI but not much else. Always research and only invest if you feel confident.