No Doubt! I have seen many peope around me who had made huge amount from bounties & airdrop, also some of them might not pay but some bounties like Amepay can give you huge profit, in my opinion if you have spare time then you should do it.
Amepay is a very good quality project. It paid all the payments to the Bounty Hunters. Student coin on the other hand is also a very good quality project but it did not pay the hunters in full. There will be two types of projects, good and bad. Those who have a lot of free time can participate in the bounty. Because bounty is a good way to make money without investing.