3 ms·

I can't imagine it does. To top it off, the numbers seem to be bounded to a very small integer interval. Even if the question was posed as a captcha, a computer

I can't imagine it does. To top it off, the numbers seem to be bounded to a very small integer interval. Even if the question was posed as a captcha, a computer could simply keep guessing. This is super-easy to brute force... At least they enforce a moderation queue. (I asked about the standard deviation not being included as was mentioned by abtinf.) edit: deleted parent post was discussing the plaintext captcha.

archgoon 15y ago
My pardon for the deletion, I reconsidered the observation as off topic. The original question was: "I have a question about the Captcha at the bottom, how does a text-based math question help prevent automated submissions?"
- tedunangst 15y ago
  You at least have to customize your robot for the site. An off the shelf perl script with www::mechanize and a few regexes probably won't work.