I've just opened a new account on the Danish Wikipedia.
I was asked to read the following Captcha :
http://da.wikipedia.org/w/index.php?title=Speciel:Captcha/image&wpCaptch...
I provided the following answer : "shipsneeds" and it was accepted. But I must confess that reading the second "e" and the "d" was difficult for me.
I was anguished, because I feared that if I answered a wrong answer, I would not be given a second chance for some time.
I don't see why both "e"s should have a different look. Because they looked different, I was puzzled during a long time before eventually choosing to type a second "e". The vertical bar of the "d" being extremely short in comparison with that of the "h" and that of the "p", I was wondering if the last character could not be a square looking "o" or a manual script "a".
I had all these difficulties although I am among the advanced readers and speakers of English. I Know that "ee" is an often found character combination in English. I could also recognize the words "ships" and "needs".
What about non-English speakers ?
Should we not have Japanese-based, Malayalam-based (there is a lot of talk nowadays in having Wikipedia growing in India), etc. captchas ?
For the time being, while the captcha is English-based, how about adding a button with "let me try another captcha" for people experiencing a captcha that is very difficult to read ?