A lot has changed since 2015. Back then you could of easily got a 3500 sat faucet with only like 10BTC in rolls.
However as the interest of Bitcoin exploded in 2017 so did the faucet abusers and these days 3500 is a lot of money to give away risk free for someone who can easily 10x and withdraw and do it over and over again.
And that is why there is a minimum "tip" amount too, people claiming the faucet, betting and winning once, and sending the btc to another clon account to cashout.