Nobody can tell you that! Expecting to get rich from bounty campaigns is ridiculous.

Bounties are good to accumulate some new tokens that may have some value in the future. That's why you need to be careful about any bounties/airdrops that you participate in.

Right now, the only project I am interested in is Vite (vite.org). Check it out. It does daily airdrop on the mobile wallet. The quantity is small and won't make you rich but the project is legit and definitely has a good future.