Some people have been bounty hunters for a long time (e.g, for the past 2 or3 years) and till now, they are still on the act of hunting for more altcoins.
It is true that the reward hunters now get is so small compared to what was obtainable 2 to 3 years ago and not only that, it now takes more time to be paid than it was. So, instead of complaining, why not through some of the experience you have got, since your sojourn in the crypto space, explore other means through which you can earn more and fill your portfolio.
N.B:
This might be like a vital information. There are lots of projects that did bounty campaigns (although not all), which have decided to extent the time of payment of tokens to their bounty participants. Whose tokens are growing tremendously after listing on exchange. Which means that traders and investors of projects like these get their profits before bounty hunters are paid.
DISCLAIMER:: Although, this is not an investment advice, but an observation, which i have decided to call your attention to.
There is not effective ways to earn bitcoin and eth in crypto space than through bounties and airdrops, i am not into trading because its very easy to lose money when trading, no matter what i will keep hunting for bounties, i never expected things to be easy that is why i am a self made stubborn ass
If this quality that you have, most especially being stubborn at achieving you set goals or targets, then you should be able to do anything, no matter how tough it might seem. For instance, trading requires a lot of determination and courage. It requires someone with a mind that is made up. You can just give a trial and you will see that you can do it.