I see lot's of those on Tor browser. There's nothing about entering street numbers, just identifying images that include street numbers. But perhaps that's also valuable. And what about the other major types, such as rivers, mountains, store fronts and street signs?
It depends on whether you're presented with the v1/noscript version or the v2 captcha. Desktop users may prefer the noscript version since it's faster to fill out with a keyboard if you're already typing into a form anyway instead of having to switch to the mouse.
I'm talking about image-based v2. I have better luck with them if I allow Javascript. I don't recall seeing the code pasting ones until recently. I often found v1 impossible. And buggy, in the sense that they kept repeating even when I clearly got them right.
