hCaptcha makes money by using the website user as free labor. In a way, if a website is doing this instead of ads, it's better, still, getting to choose how I

hCaptcha makes money by using the website user as free labor. In a way, if a website is doing this instead of ads, it's better, still, getting to choose how I repay a website for content, I would prefer more control over my form of payment. Less acceptable cases exist as well, I ended up cancelling auto-payment of a service which recently started putting up an hCaptcha for every login attempt. Here's the relevant section from their website: hCaptcha is designed to solve the most labor intensive problem in machine learning: labeling massive amounts of data in a timely, affordable, and reliable way. More data generally produces better results in training machine learning models. The recent success of deep models has led to increasingly large datasets, almost always with some human review. However, creating large human-reviewed datasets via Mechanical Turk, Figure Eight, etc. is both slow and expensive. hCaptcha allows websites to make money serving this demand while blocking bots and other forms of abuse. Powered by HUMAN Protocol The hCaptcha marketplace is powered by the HUMAN Protocol, an open decentralized protocol for human review that runs on the Ethereum blockchain. Websites earn Human Tokens (HMT) whenever users use the hCaptcha widget on their site, and machine learning companies pay Human Tokens to get their data labeled.