bounty manager I think it's only aiming to attract investors and participants only, I always do not think about it. I put forward the concept of the project. if a good project and supported by a good manager would be successful.
But here the person asks you to point out that the bonus manager is the best. But I think it is probably Sylon. They are the best bonus managers I have now, and I have participated in many of his ICOs and I have received many good results.