CAPTCHA was always a totally flawed concept. At the time they were invented, proponents were more then happy to ignore that accessibility issues related to CAPTCHA made the concept itself deeply discriminating. Imagine being blind (like I am) and failing to solve a CAPTCHA. Knowing what the acronym actually stands for, you inevitably end up thinking: "So, did SV just proof I am subhuman?" Its a bit inflamatory to read I guess, but please take your time to ponder how deep this one actually goes, before you downvote. You were proposing to tell computers and humans apart.

That said, I find it deeply satisfying to see LLMs solve CAPTCHAs and other discriminatory measures for "spam" reduction.