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
Now generally not profitable to do a bounty , how much have you earned money last year on the bounty ? I think that's a very small amount of time you spent on these bounties.