Is the purpose of captchas to test your visual capabilities?
While looking at Hendrix, I saw this captcha on the submission form:
I really have no idea what the second word is (10H? 101l?). And from what my doctor says, my eyes are working perfectly well. The audio alternative doesn’t work on Linux, so I cannot use it as a workaround. I really think such captchas are a bad user experience, especially for those with some disabilities (and in this case, even for those without disabilities).
As an alternative, why not suggesting something more simple? For instance: "How many triangles are not red in the figure below?"
Unless the reader never went to school, he knows what a triangle is, and which color "red" is. I doubt a robot could easily parse the question (but I may be wrong).
Am I missing something?