From: John Joyce Date: 2007-07-05T14:37:30+09:00 Subject: Re: [ANN] flatulent-0.0.2 - ajax gets stinky On Jul 4, 2007, at 11:52 PM, list. rb wrote: > There's probably a reason why this isn't used, but, I couldn't help > but ask. > > Instead of asking the user to 'Enter what you see', why don't the > questions > vary? > > I.e., > - enter ONLY the letters [A-Z] you see > - enter every other character > - enter the text backwards > - enter only numbers > - enter the number of times 'A' has occurred > - enter the number of vowels > - enter the RED letters only (assuming there was color in each > character) > > My assumption is that this wouldn't be user friendly? --It would > definitely > add to the complexity of cracking I would think.. > >> >> >> these kinds of questions are a little to simple and logical. It needs to be more wordy! also, colors tend to be trouble for accessiblity issues. Some people are color blind. longer phrases or even a question itself as the captcha are better. If the question is a captcha and the answer is a word that any human could answer, even if it means doing a quick google for the answer, it would be better. Machines can't get that stuff. question: (as a captcha) What is Michael Jackson's brother's last name? or If you had 3 hands, how many thumbs would you have?