Why Proof-of-Work Beats CAPTCHA for Form...

Every developer knows the drill. You add a form to your site, bots find it within hours, and suddenly you're dealing with spam submissions. The traditional answer? CAPTCHA. But CAPTCHAs come with serious trade-offs: Conversion killer: Studies show CAPTCHAs reduce form completions by 12–40% Accessibility nightmare: Visual puzzles are fundamentally inaccessible to screen reader users Privacy concerns: reCAPTCHA sets cookies and sends data to Google's US servers User frustration: Nobody enjoys clic