I've tried to sign up to forums so many times where captchas are so obnoxious, I just go "sod it." and move on.
Google is the worst if you are trying to talk on youtube. Absolutely ridiculous.
I cannot see a bot being that good at getting the gist of a phrase. Or random letters.. but the way they do it, the captcha makers, is pathetic..
And it's even worse if you're a legit member, and need to update your email.. gah, who ever invented captchas is a moron..