[traceroute66]

> only previously viable solution was ReCAPTCHA

Erm, hello, hCAPTCHA[1] ?!?

Can't remember when they started, but I certainly jumped ship to hCAPTCHA what is now many years ago now.

Privacy protection is stated there on their homepage as their key differentiator with ReCAPTCHA.

[1] https://www.hcaptcha.com/

[collegeburner]

you're replying to one of the earlier large adopters of hcaptcha. fact remains, its marketshare is still a lot smaller.