I don’t think bounty managers are to be blamed when the project won’t turn out the way you expexted or it becomes a scam. Although bounty managers may have a direct communication with the project but there is a huge possibility that the managers doesn’t or will not know that it is a scam unless the manager is directly involved with the project. So with that, i think it is best to give them the benefit of a doubt and at the same time, not curse them.