I dig this concept, and using things like QR codes for none traditional uses. I'd prefer to scan a QR code on a page then enter a capatcha. I think for things

I dig this concept, and using things like QR codes for none traditional uses. I'd prefer to scan a QR code on a page then enter a capatcha. I think for things even simpler then logging in, QR codes could be a reasonable alternative to difficult web forms, id verification, etc.