can you make a living out of bounties and airdrops?
A straight answer is yes. But work is needed for you to earn from bounties. Airdrop is a way that Developers spread the holders of their token to as many people that avail themselves to the airdrop. You do not have to do any work, but the tokens allocated might not really worth a living since it is free.
Yes, you are right, most coins in airdrop are coins that do not have a high value. His name is also a coin, many are looking for various businesses that are sacrificed, it's a pity if it is distributed free of charge. Staying more effective and efficient to follow the bounty, his earnings from bounty more convincing and larger and more clear. Airdrop is just a bunch of it, if not lucky yes do not get a coin.