I really, really hate captchas.
Unless you are taking my credit card or other personal info and want to make sure I am not some computer please, please don't make me enter sQuidlyfunBra1n6 or Fart1nisL0^3.
After blogging for 4 years, I have never had a spam comment. In fact, since I moderate and approve my comments before publishing I don't have to worry about "GET BIG NOW", "HOT HOT HOT LADIES IN YOUR AREA" "UNSIGHTLY HAIR- NO WORRIES WITH HAIRBGONE!!!"
So I beg of you, unless your website or blog is keeping some top secret information, please don't make us enter a Captcha just to leave a comment.