There's no accounting for niche preference of course, but at less as far as understanding the feasibility of an approach like this: I don't think most people ha

There's no accounting for niche preference of course, but at less as far as understanding the feasibility of an approach like this: I don't think most people have the "cut off their nose to spite their face" impulse that you're describing here: if a captcha is more usable for the user _and_ helps the company, most would just see that as a win-win.