The most painful experience when promoting a bounty project is thinking you made a right choice by removing the signature of the project you are promoting presently for another project that you think its better and later on? 
The first project you are promoting get listed and doubled in value ,how will you feel? Damn! The fact is bounties are unpredictable sometimes ,no one can predict the end results
That is why careful analysis sometimes misses. Many factors are unthinkable, making these tokens popular and the price is high after being marketed. Then, patience is needed, and sincerity to join the bounty. Luck beats everything. The first project you are promoting get listed and doubled in value ,how will you feel? Damn! The fact is bounties are unpredictable sometimes ,no one can predict the end results