If you would agree with me, a lot of things have changed I the world of bounty.
Back in the days of ICO boom, bounty was very profitable. You could engage yourself in just one ore two bounty campaigns in a month and be rest assured you would get a substantial reward, that is able to sustain you ahead of another campaign. The story now seems to be different.
We are now in a time where, if you are not care, even after attempting several bounty campaigns (say ten of them), you might need to wait for months before you could be adequately rewarded from just few on them. Sometimes you may not get enough to justify your hard labour and there are times you get nothing, which means wasted effort and time.
I have thought of this several times and one of the solutions I resolved on is simply intensive research and hardwork.
In order not to waste time in promoting scam projects, that at the end would not pay you or a project with no proper planning, that later does not succeed, you would have to learn how to do proper research and devote much of your time for it.
The reason you also need to work hard, is that you do not know when the reward of a particular project you have researched on would come, due to the general market condition. Therefore, it will be best for you to attempt several bounty campaigns. Not all that you see around, but at least four (4) good ones at a time.
If you really want to limit your complaints as a bounty hunter, then you have to do proper and intensive research on your own and at the same time work hard to get the best you could, irrespective of your rank.
Although you got some point because of the status of bounty this year, i think research and hardwork might not work for some special cases, this means that some developers are legit and true at the start of their project and at the end of the ico, they will be gone, so i think its a matter of luck i believe, but of course research and hardwork is an important factor in doing some projects, we need to carefully understand that are certain risk if we promote a project.