I find it infuriating and ridiculous that every single website I've ever visited uses CAPTCHAs in completely the wrong way: they make you input a bunch of information, and then when you (inevitably) fail the CAPTCHA entry, you end up having to re-enter your password (and sometimes other fields) before resubmitting.
Instead the pattern should be: FIRST solve the CAPTCHA, THEN be directed to the actual registration page -- that way you don't have to keep retyping shit over and over. Submit once and it's done!
yep, the use of the captcha on any site needs to be used well, having to resubmit a page of data fields is a pain. All designers need to be aware of how the user experience will actually go.