Wow, zebra btc and weekendbtc have all lowered their prizes!!
Not just them ... many have with the rise in the value of the BTC.
It's not unusual.
Low BTC $ value = higher payouts
High BTC $ value = lower payouts
Yes, and it is easy to explain: Faucet owners, to keep faucets filled, earn money mostly from AdSense - this service pay in fiat. So every time when Bitcoin price rises, faucets rewards is going down.
There was time when faucet reward was 5
BTC !!!
Maybe will come time when 1000 satoshi will be worth $1000