As long as some bounty managers can get paid with reliable coins in the market (particularly btc) doing their jobs in promoting, they will take the project even though it doesn't look good and legit at the very start. But that doesn't mean that all bounty managers are like that, there are still some bounty managers that research thoroughly about the project before accepting and handling it. It is because their reputation matters to them. With that, we can somehow feel comfortable joining their projects because we know that that project can be legit. But still, it's not that 100% guaranteed because some projects still run away and don't pay bounty hunters when greediness hit them, no matter how good their project are, but we can't blame the bounty manager about that anymore.