Yeah there are lots of problem with the bounty persons. The Devs think that we are just a freebie but we have done lots of work. Some of big projects refused to give the bounty rewards.
The easiest way to earn a lot of bitcoins is by joining the bounty or signature campaigns.Bounty campaigns pay us weekly and according to our ranks.So if the rank is higher then you are paid more.But sometimes one can receive his or her payments late.There are different types of campaigns.Some pay weekly and other pay monthly.You will only get your payments of you have completed the given work within the given time period.