I thought the link will lead into something "special" but ended up on a certain site.

The bottom line, putting money there is still at risk unless people will used their faucet earnings just to test the waters. But goodluck waiting for a year.

That 4% is annual interest. Really not worth the time to wait just to target the interest especially if the funds will came from people's own precious stash. There are lots of ways to earned cryptos on which anyone can learn within a year period.