Basically all these new referalls are only curious with how the site works so probably most will claim it for few hours then stop right after they do the math and find out that they are only getting few cents every hour even if you offer to give all of your commission back. Some probably will stay for couple of days or longer period of time but most of these people are not going to go back lol
Free claim (faucet) was a thing back then, its no longer is right now
Well, it was pretty much same always with referrals. Very few of them stay active for longer time. Most stop to use faucet after few days, in better cases for few weeks.
If someone came to Freebitco.in just for faucet now, imagine how much time it would take to reach 30 000 Satoshi to withdraw it by claiming 5 Satoshi/hour in average. They would have to claim from faucets somewhere 6000 times!