Are you still earning money with them or just a few bucks (which is not worth to bother)?
I stopped joining bounty campaigns (altcoin-paid) already but when I stopped it, I felt that the profit that I can get from it is slowly declining so I decided to join on a campaign whose paying their participants with Bitcoin and I'm on it for a year already.
In 2017 and 2018, it was so profitable. Now, what is the situation?
Bounty hunting isn't profitable anymore for me because of the fact that scammers are everywhere. There are many ICO's which are either a scam coin, a dead coin, or a coin who doesn't have any funds to start because they've failed to get funds in the token sale.
Should I start again?
You should stop at once.