If I can't find a bounty project that's already listed and trading I'm done joining bounties.
No matter how reasonable a project might be if the teams decided to stay anonymous I will pass by
Whitepapers and roadmaps aren't enough anymore,developers should be ready to face the public and be ready to show me they are ready to work ,not experimental on 'it might became success or failure .
Your distress is familiar to me.But if You want to earn normally You will have to participate in those projects that are not yet launched and are only at the ICO stage.There are very few working projects that conduct bounty.