Based on the scenario given on the op , that takes a lot of time and you will only get 50 usd at the end ? wtf . i think im gonna burst if that happens to me but 50usd is still a money . that was better than nothing at all .
Thats the reason why i dont like joining a bounty because they take too much time to finish and the rewards are not also guaranteed . worst thing that can happen is what if you the project will end up on scam ?
Such a reward can be good, if you put a little work, but when you've spent a lot of time and effort, this amount is small, probably best to wait, especially when the market starts to come to life as it is now