January 21, 2005
Too advanced Captchas?
I got served the below Captcha when registering for a Yahoo! Group the other day. Seriously, is that a 6? a non-capital b? σ? Is that an e, ẹ or an ę? How about the W? .. or is it a Σ?
When captchas get so funky that humans with 20/20 vision start struggling; accessibility is far away...
You're going to love this one. I got a similarly difficult to read captcha several months back when trying to sign up for .NET just so I could read a particular message board group on MSN where my weblog had been linked.
However, the good thing about this particular captcha, it had an option that if you couldn't read it, to click a button and a sound file would read the letters out loud to you. Unfortunately, I couldn't understand certain letters in the reading. Like, it didn't say "Z" as as in "Zebra."
So, for someone with pretty good vision and excellent hearing, I never did find out what the message board post said about me or my blog.
Those captcha's always remind me of Dingbats problems! I keep expecting to get a flash of inspiration and shout out 'over the hills and far away' or some such. Unfortunately I seem to have as many problems deciphering captcha's as I do Dingbats!
One drawback is that people will probably be less enthusiastic about posting comments when they do not even get the treat of a good link. Good comments are contributing some value to the original blog post.
Forget captcha, and force your blog operator to implement the "rel=nofollow" keyword pushed by Google
Referrers to this page
TrackBack URL for this entry:
: Why Captchas Don't Work (January 21, 2005 09:42 PM)
Here's a pretty good example of why Captchas are a very good way of stopping spammers from signing up for things. With this level of obscurity, it's getting kind of ridiculous.
I read a little while ago that most Captchas can be read by standa...
35635 visits (1 today, 6 this week)