You can hire human captcha farms for sub pennies already. Systems like reCATCHA are behaviour / profile-based*; the actual captcha bit is almost a stagescreen.

You can hire human captcha farms for sub pennies already. Systems like reCATCHA are behaviour / profile-based*; the actual captcha bit is almost a stagescreen. *At certain thresholds, even solving the captcha correctly will falsely claim it’s wrong. Particularly if you’re not logged into a Google account.