I fully agree with you that it is not a good idea to expect significant amount of rewards from airdrops, specially when the community is in hundreds of millions and supply of tokens is 100 Billion or even more. I also worked for 47 days for airdrop farming, this morning when saw the result, it was quite disappointing. I am eligible for 500 Hamster tokens and value is leass than $10 at current pre-market price. It is very unlikely that its price will rise beyond $0.01, given the massive supply.
We never know if airdrop can give a significant amount to us so we can wait for that and hopes that one of our airdrop reward can happen. It is normal if not many airdrop can have their best day to increase. You can remembered with how the ICO and IEO works so that can happen like that in this airdrop programs. Maybe in the next altcoin season your token can increase and give surprise to you as we don't know for sure about that. People still expecting to make a huge profit from airdrop so they work for the tasks and other things to get more token when the distribution coming. But for hamster, maybe there is a chance to increase so high and make those participant from the airdrop can get a big profit.