This is a decent summary and you have to choose wisely. This is true to check the numbers and when is 30% for signature is good and so on, all true. But still, how much will you get in the end is pure luck.

I can only talk for myself and I was true all kind of different difficulties when I was and actually am today participating in bounty programs. There will be time delays in your payouts and the longest I have seen as for now is Atlant ICO which paid first bounty 6 months after ICO and not everything only first batch and they will pay monthly for 18 months.

Another one I joined had many participants 12000 and people counted stakes before payout and screamed that they will earn cents. At the end when stakes were counted there was only 600 people left because the rest spammed the hell from the bounty. We got really nice money.
 
I could be counting like this for 2 hours and I only participated in 6 bounties. In the end, this is pure luck if you get paid anything. You should consider this as a extra money and not the money you depend on because bounty campaigns are pure wild west.