This is going to sound odd, but I think the QR code still carries the same level of 'unrecognizable' that a long string of alphanumeric text does. My brain can't really parse or recognize a QR code from memory. As such, I have a sense of unease. However, I am able to roughly recite my credit card number because it is 4 sets of 4 digit numbers.
But you're right that you can offload addresses to browser or app memory just like with credit cards and get rid of some of the trepidation that way.
But you're right that you can offload addresses to browser or app memory just like with credit cards and get rid of some of the trepidation that way.