I've just attempted to post a question on Unix&Linux Stackexchange. I was prompted with a CAPTCHA with a picture of HAL 9000 and the following text:
Human Verification Are you a human being? We apologize for the confusion, but we can't quite tell if you're a person or a script. Please don't take this personally. Bots and scripts can be remarkably lifelike these days!
Check the CAPTCHA box, and we'll be out of your way.
<UUID>
There is no link, no CAPTCHA and no way to actually post the question. I'm not sure what's going on here.
I'm not surprised that I am being prompted to pass a CAPTCHA, my browser is atypical and so may appear like a bot.
Does stackexchange use Google for their CAPTCHAS?