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 ?
we have different cases of bounties and though you are correct in your observations, i still think it worth giving a try if you feel like it. you can't avoid unpleasant stuff but at least you get rid of your fear