I think choosing a good reward manager is the key to a good project. First of all, the project of the bounty manager will send the token, and the good manager of the bounty pays attention to his word of mouth. They will study carefully when choosing the project, and they are more professional than us in this respect.
You are right. Bounty campaign managed by a reliable manager is more appealing.
But they can also make mistakes sometimes. I just went through a bounty which is managed by a famous manager.
It turned out to be scam, and the manager couldn't do anything.