Solid bounties always have good teams and not anonymous teams ,good bounties have better roadmap details and good whitepaper, its your duty as a bounty hunter to do research on the projects before promoting
all we do as bounty hunters is speculation, there is no certainty for this. we just wait for our luck. even on projects that we value are very perfect, sometimes we only get very little reward. I have a view if all bounties are the same, both have the possibility of a scam.