Well I don't really know much about bounty, but I guess those bounties was doing well before that was at the early stage but now I don't really know how those bounties is going anymore, bounty of nowadays is very different from the bounty we use to know before. most of those bounties you see today is scam, though it depends on the kind of bounty campaign you participate, because most people are still going in search of those bounty campaign, so I think most of those bounty can still Worth something.
Bounty boards are still busy, although there are not many new projects, but every day there are still quite a lot of active members there.
to avoid scam bounty campaigns that result in participants not receiving anything, there are bounty campaigns that pay their participants with USDT. that's quite better than paying tokens that can't be traded yet, and it takes a long time to be listed on the exchange. that's also if the project is successfully launched.
some bounty campaigns have even done escrow for payments. so it's quite calm for participants. even though the results may be very small, and may be beyond the participants' expectations.