This reminds me of a similar solution I saw on PH last year, I think it's a great alternative for smaller websites that are less likely to be targets for spams/

This reminds me of a similar solution I saw on PH last year, I think it's a great alternative for smaller websites that are less likely to be targets for spams/bots But say, there's a website and it's a likely target, you implement IP protection, fine, the user uses residential proxies. Now your best bet is to go off fingerprinting, but there are marketplaces which sell those too in bulk. Maybe I'm wrong, but wouldn't the best approach be to stick to human interaction puzzles, which are hard and don't have a set way to solve by a machine(for now)?