Holy crap, I’ll close window if I see such a CAPTCHA:
CAPTCHA is an almost standard method of human-detection during comment posting, user registration and Google search engine. (Google thinks I am a bot. No, Google, your search engine is the bot, silly.)
However, it really shouldn’t be. Image CAPTCHAs are set up to deter bots, users with malicious intent and my friend in college. But it achieves this by imposing a penalty toward genuine website visitors.
CAPTCHAs are becoming hard to solve these days as image recognition improves. It’s unfortunate that most sites implement harder-to-read CAPTCHAs that it’s so distressing and laborious to just read the darn squashed up vowels.