it's hard to find a good bounty, most of them are scams even managers with positive trust are no guarantee, because the manager only manages the bounty and payments are made by the project team, even projects that are successful in sales sometimes don't pay bounty participants, so before joining the bounty carefully research and wait for good fortune.
Nothing is in our hands even though we research a lot about the companies and their activity but at least we are seeing so many scams. Even though managers are researching about the company but once after completion of their we are not getting paid. Even they are reducing the payment to the bounty hunters once they reach the hard cap.