Is it to engage in new campaigns and advertise for them and the next thing vooom....you are out in search of another campaign or is there something else which I don't know about
Bounties nowadays take as long as 12 weeks to 20 weeks to complete. That must have been more than enough time to promote the project. So it may not be suitable or convenient for the bounty hunter to continue promoting after such long period.
And when they work 12-20 weeks, But the reward they receive is only equal to 4-8 weeks than before .. I found engaging in bounty now take too much time and get too little money compared with the beginning of 2018