Bounty hunting is not a serious work anymore, it's like gambling where there is no guarantee of profit for every coin you campaign, the campaign is getting worse there's hardly a good project to promote now.
Exactly, if we got lucky, we got good rewards. Because even we spend a lot of time digging and searching which one is a good project and has the potential but this never gives us the assurance that later the developer will pay us participants and if it has a decent market value that most don't have.
It is really hard to say, but bounties become unfortunate and I expect sooner or later this getting worse.
I have read on this forum that in 2016-2017 there was an altcoin boom and the coming of the ICO brought with it some good bounties that earn hunters good returns but in recent times there have been a lot of scam projects that may never make it to the exchange but conducting large bounty programs that become worthless so I will not advise anyone to go into bounty hunting because it doesn't pay and even if it does pay it will be a peanut that can not profit the user with a true value for their time or money.