When choosing a bounty company, I pay attention to the product that will be developed, and it is desirable that he had his own blockchain, project team, who is the bounty Manager. But even this may not help you because there is a lot of cheating in this market.
same here . i do also look for the product because i think that is the main ingredient if a bounty can become succeful in the future or not .
aside from that , i also check other important details like visiting their website and contacting thier adresses and contact info , in this way i can easily verifiy if they are the real owners of the said project .
lastly , you must have a trust on your chosen bounty . patience is also the key to victory because sometimes it could take a long time for a bounty to finish and distribute their rewards .