According to my openion bounty hunting is getting so difficult day by day specially for newbies...Also there are many projects that's came out as scam & some also don't pay on time... Even sometimes development team change the reward pool at the very last moment.As a result we get low amount of tokens which eventually doesn't have any use of making some good profit from that bounty.
Nowadays getting a good project for doing bounty is very hard...Let's hope for the best in this year...
For Newbies, the only way to earn nice reward is to have social media accounts with lots of followers.
Regarding projects, unfortunately they depend on how much initial funds they have and on investors - and those are currently lacking.
I think that if the project doesn't have its own funds to pay for the bounty campaign in exchengable currencies, this way of promotion will simply die soon.