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.
You are right, you dont need to worry that projects will not raise funds for conducting bounty campaigns, as participants in bounty campaigns help attract investors in social networks, on this forum, etc. Now is not the best time on the market and the rewards for participating in the bounty are not big, but I am sure that the situation will improve.