I can say 100% that 60% of all bounty is a Scam. The reward for them is either given and the tokens will lie on your wallet forever or do not give at all. Then what's the point of doing this ?
I think in order to earn something, you need to more carefully analyze and study the project, before working with it. If you initially do not like something in it, who makes you participate in it? Most bounty hunters complain about bad projects, although they do not even read anything about it, except for the bounty page...