bounty is just like other kind of investing, you have to accept the risk and do the work
it's not asking any money, but the time it takes, if it's not your free time, consider it as a time invest, cause in that time, you might make more money than doing some that stuff
you were rigth dude, many Bounty hunter thinking if they could not invest their money they will do with another thing and this is their time. Working in any Bounty campaign that will finished in several months could give them alot money when meet successfull projects. But if we find fake or bad projects our time will be useless for few months ago. But we should not give up , there are many good camapaign will occur again.