As long as new projects and coins enter the cryptocurrency world, as well as this forum exists, Bounty programs will run. These new projects and old projects which wish to refine their strategies need the help of bounty hunters to spread the awareness across all over the globe.
The bounty campaign has made a lot of money in 2016. But that was when very few people knew about the bounty, and the ICOs were better then now. Every day, more people participate in the bounty campaign, and bonuses will be split more. The bounty starts boring, but it will persist because the bounty hunter will introduce the project to investors through social networks.
so little successful projects without bounty campaign.