What is your use case? I get exactly 0 spam on my website (of 100,000s of users) by simply writing my user registration page in a nonstandard way that bots aren't familiar with filling out automatically. It uses JS to `fetch()` a custom API endpoint and then redirects to the homepage.
Or for example, a fixed question "What color is the sky?" or something can reduce spam by orders of magnitude relative to nothing at all.
Or for example, a fixed question "What color is the sky?" or something can reduce spam by orders of magnitude relative to nothing at all.