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.
Not only that. You can't tip at all if you haven't made a deposit recently. I don't know for how long you are eligible to tip from your last deposit but I tried to tip someone some time ago and I got something like "You can't tip without deposit" and my last depo was made in December 2015 according to my Transactions' info on PD. I thought I was making depos after that, but apparently I wasn't.