It's actually a sign of bad ergonomics and disrespect for your time and effort. There are already sites that know you're human by your mouse/touch behaviour. On

It's actually a sign of bad ergonomics and disrespect for your time and effort. There are already sites that know you're human by your mouse/touch behaviour. Only if js is blocked do they need to resort to those ridiculous multi-level games they make you play. My surprise if the sites that do those things turned out to be using humans for free labeling of images would be an exact, unsigned zero.