The second point on OP list is a very good advice for bounty hunters, do not think you've hit a jackpot by promoting just two or three projects, there is a chance that those three projects might not do so good, try as much as possible to expand your chance of good success by joining good projects when available and do your own research on the project first.
That's right. Don't fall asleep when you doing your job! Some people win some projects and then they have the safe feeling with the market, that's a great risk. You're at greater risk when you feel that you're safe. Bounty hunters need to always be careful about the risk. By taking precautions and cautions, we can reduce the risk of being scammed in this market!