You can try to make money on bounty. But at the moment, this way of earning almost no profit.
it depends on what kind of projects do you choose. some of them still raise hardcaps so you could also earn some tokens for the bounty.
In reality even those ICO that manage to reach their hardcap still failed to deliver anything for their investors and bounty workers.
Its always depends on the projects admins intention on how they want to proceed with their project, sometimes this admins just vanish from thin air and all bounty hunter left unpaid with their time and effort. That's why only join those bounty that pay's tradeable cryptocurrency