Yes we'll know that. The most important thing we the bounty hunters should know is: doing your individual research will help in finding good bounty to participate than just joining some random bounty. Although, I have been a victim of this circumstances before till I sat down to think about my ability to research into any published bounty before participating into it. Laziness on the part of the bounty hunters made them to always pay the ultimate price for working with these companies without getten  paid for their promotion.