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 with you I think that more than 70% of the bounty is a scam and I have already participated in many of them but it turns out I was a fraud and I was involved in publishing this fraud unfortunately 