Don't give up. just stop investing and supporting crap. Your time is important so take your time when you choose what bounties to invest in. Forget about the pay rate and things like that. Make sure the bounty is for a project you could see yourself supporting even  after the bounty. If you are not willing to keep supporting the project after the bounty that is a good indicator to stay away.

People you just need to read and think for yourselves that is all. You need to know where to look.