Mark Gallagher wrote:
G'day Oskar,
BTW, if people use browser unable to display images, how much would an audio captcha really help (I mean, sound's way more hi-tech)?
Some people use browsers that cannot display images because they're blind. In such cases, audio is a Good Thing, and use of images specifically designed to be unreadable to computers is not.
-- Mark Gallagher "What? I can't hear you, I've got a banana on my head!"
- Danger Mouse
An E-mail request link is pretty effective, I think. It is reasonable to assume that anyone who is intending to edit Wikipedia has some way of reading and writing text, whether directly or via assistive technology, and this will accommodate everyone who has them, without being bot-friendly.
Also, a secure but accessible sound captcha is rather more difficult to pull off than a visual captcha, since there are many more people in the world with partial hearing than partial sight.
-- Neil