How'd you know that there are good bounties that do pop out every month? I highly believe that no one would ever know on when those projects will pop-out.
They might come out every other day,week,month, years. No one knows, the only thing here is that you do know how to investigate those projects on clear manner.
Majority are way to lazy on doing their homework that's why they do end up on supporting fraud projects.
No matter the length you could go in researching, good projects does not often come out as you see, when you see rush of icos, they are basically scam projects because it is scam projects that want to quickly enter the market to make money and the exit as quick as possible, some projects even takes months to market survey first and then do their visibility study before they can know that the project they are proposing is right for them and is right for the community.
Dont get me wrong that I am against people researching, we have to make research but we must have it in mind that we will get mostly bad projects and we could get like one out of ten through our research, at least it would while a way our time a bit while we are waiting for our long term investment to add some profits.