Written by Brian Cray on April 22nd, 2009
Pictured below is an epic CAPTCHA disaster on Sphinn's registration page that I spent 5 minutes trying to pass.
Oh how I hate CAPTCHA, the popular little form spam preventer. While good in theory, CAPTCHA punishes a user that's probably trying to either register with a website or contact the people behind it—neither of which do you ever want to make more difficult.
As an alternative to CAPTCHA, why not ask your user a super simple question in plain text that only a human could answer? Like, "Are we on planet Earth?" or "Are you using a computer?" or even "Are you human?"
But whatever you do, don't make your users work on your site. Ever.