It is still worth but you need to have luck and do good research. Years ago it was good hobby since projects very legit and there were less scams. Now you mostly depend on luck.
it used to be worth it and a lot of people got great results. but currently airdrops and bounties are less enthusiastic. but if it's just to fill your spare time it still seems worth doing. but don't get your hopes up because the effort expended to do the task is not worth the reward.