The process you go through before investing in a business or an idea, you need to inculcate that criteria in your bounty selection process. In bounty, you invest your time and resources, which means you should be selective and analytical with your choices. Another thing you should pay attention to is the price of the token at ICO and the total tokens allocated to the bounty program.
I have plans to start a thread for this same topic. I will go into how best we can maximize our earnings from bounty programs according to forum ranks.
Stay tuned.