I think bounty managers shouldn't be blamed, how can they know, if an ICO is a scam or not. Bounty hunters have also got some responsibilities, they have to research well before participating in an ICO.
That's right. I agree with you. The bounty hunters are the one responsible if they have been scammed in the ICOs they are participating and joined. It is their responsibility to research and see to it the legitimacy of a company if it offers real projects or just a plain tricking.