First of all getting a bounty is not easy for all the BM. No matter how big their reputation in the forum but still it's hard for them to collect bounty. In this case, BM mostly time look for their Fees first and later its come about Escrow agreement . If any project team agreed to pay the fees and come to escrow agreement , the BM take the deal.
In this case, all the hunters should have little research about the project. Because I seen most of the bounty hunter do not look to the project anymore. Even they do not open the project website and thus they get scammed later.