I dont agree with your statement. but i can give your a suggestion so you can do more better in this crypto world. The key to sucess in this crypto world is research and research. Why?
Because like you say you dont want wasting your time for nothing. doing the bounty and got nothing. isn't it.
So the requirement before joining the Bounty is doing the research about their product, their idea is a new brilliant idea or only copy paste the old coin idea + some common feature, their teammate background, their advisors, their planning and the use case in the future. if they are good then, it is worth to do their bounty and ofc a lot of people will join that bounty.
So g luck for you and keep your spirit ^^