One sad day when all my friends get UNI alone I don't get it because I choose a centralized exchange to reduce transaction costs. 
400UNI ~ $ 1200, which is more than the government subsidy in my country.
You can look at it as payment for people who spent their funds on uniswap fees. 400UNI ~ $ 1200, which is more than the government subsidy in my country.
If you made a lot of transactions last year you maybe saved even more than $1200 on fees.
I have a peculiar question about this 400UNI giveaway - what if one person was using several wallets and made some transactions on uniswap with each one of them, will this person receive 400UNI per each wallet?
If so - that is ridiculous