I think that's a good idea, but most of the time the developers depend on the hard and soft cap to promote their project, I think this kind of case already being warned by more senior accounts, dont join the project if there is no escrow but in the end the bounty hunters didn't care about the escrow and keep on joining, so I think this is half of the bounty hunters fault
I think I agree with you. The key to preventing being scammed or working without any gain is to be carefully watch those bounty campaigns single handedly.