They should stop doing that then. Absolutely no good reason for it in the first place, other than discrimination.
Photos may not be the final solution to this flood of automation, but it's being dabbled with.
You can already generate a profile picture and have it lip synced with a text to speech audio (or even speech to speech). It's a losing (lost?) fight
https://www.youtube.com/watch?v=FK8sgB-58q0
Internet is rapidly becoming a pile of steaming shit already, captchas were annoying but now it seems the "are you a robot" test is coming everywhere, what a sad state of affairs. I wonder how much of the overall traffic is automated, 80%? 90% ?
The majority of people do not have a picture of them on the Internet.