Differentiation between a scam and legit projects can someway somehow be very tricky but with indebt studies and research on both, you will be able decipher between the two. Sit down, avoid been stressed and be calm and study projects well, from the team behind it, the investors, the partnerships, how they respond to their social media sites and support system will tell you more about whether the project is scam or quality.
True, in analyzing a project it is necessary to calm and do not rush to immediately believe that they are good, so that we can check it to the maximum, because in a quality project we also have to see the support of other parties how strong, so we know the project really has quality.