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 agree that today, almost 80% of all bounty programs are scammers and just useless projects. Therefore, the probability of fraud and wasting your time here is quite high. But still, I believe in the excellent prospects of the bounty market, periodically I find promising and profitable projects for myself.