We can't blame those bounty hunters who quits doing bounties due to the bearish market and scam projects that they encountered but for sure they will come back again once they see the market is recovering, so for now just keep grinding and be very picky on choosing a campaign to reduce the risk of not getting paid.
yes, what you say is true and in addition if we ever get a scam project or not getting paid, we must be careful and correct any mistakes you've made in choosing a scam project.