I dont think there are any fundamental differences between the "old" and the "new" campaigns. Back in the old days you had a much greater chance to score big as a much higher percentage of projects have successfully listed on solid exchanges, so you were able to liquidate your rewards without a sweat. Its a completely opposite situation right now.
This completely depends on the market situation, back in the old times of ICO, the market is good, so bounty hunting is also good.
Bounty reward are coming from successful altcoins project, and if we look at the market now, altcoins has really struggle and just even holding a little dominant rate compared to the year 2017 and 2018.
Let's adjust to the current situation while still continuing to work for bounty, it doesn't matter if we will get a smaller reward now as long as bounty hunting is still alive. For sure in the long run, there will be a major improvement that we will all enjoy.