miniblog.

I've not seen this before: a captcha to distinguish adults from children! The in-app purchases were behind this screen. The primary user is a 3 year old who can only count to 20 😊

Web forms are stateful, not tidy POST requests. I shouldn't have to fill in a CAPTCHA a second time if my input elsewhere was bad.

Meta-CAPTCHA: 'The obvious next step is to use comments as CAPTCHAs: "which of these 3 comments is spam?"'