Yes, there are still many active users due to the faucet feature. Especially in countries where the local currencies are severely undervalued and inflation is out of control. The official freebitco.in's thread in micro earnings sub-section on this forum is still active, and from times to times we can see some newbies sharing their big wins from faucet there.

I believe they didn't stop using the website, because it's easy to claim free satoshis hourly without having to view ads, pop-ups and short-links, unlike other websites of the same kind, besides the platform being pretty clean and loading fast even in older mobile models. Moreover, many micro earners believe they can multiply their earnings through multiplier game once they accumulate some satoshis on their balances. And that is when they lose everything and start complaining it's a scam...