You have a brilliant idea but this idea can only work on papers since bounty hunters does not have any central control body.
More and more people join bounty programs on daily basis without considering any other option besides earning some bucks.
Actually this was not the fault of the participants because indeed they themselves did not know whether the project would fail or scam. we only analyzed and it turned out that in the end the team itself did and we were also disadvantaged because they did not get paid