Yes, bounty is very profitable because i have already earned through it and what's very more interesting about bounty is that you do not need any money out from your pocket. Some people here even claimed they became millionaire of a single bounty only.
If you say you have already earned enough from bounty, i could say you have used multiple accounts to cheat many bounties. Same goes with "some people" who you said on above.
We don't need any money? Is internet costs free in your country?
I have not heard from the bounty hunters who participated in several projects in 2018 and then got the rewards they wanted, most of them only complained because the rewards they got were not in accordance with the work they had done. A scam project then a decline in the cryptocurrency market that has a large effect on an ICO project is not a simple problem. So, taken part with the bounty campaign and got profit without spending any money in your pocket as you said it was just a delusion. Unless he uses the public internet provided by the government then taken part some bounty campaign, one thing that might happen.