1) Do better research on new projects before promoting them or investing a penny on them
2) Visit scam accusation thread on the forum time to time, it will safe you a lot too
3) If you you have to invest always invest what you can afford to lose.
New bounty hunters right don't even care whether the project is a scam or not. It's because they are just after the compensation so they blindly follows the dev team. This ruins the industry especially the image of many bounty hunters. Indeed, visiting the scam accusation really helps for us to crowdsource information and confirm the false news to real ones.