[drivebyacct2]

I've made a point to ask people who work in retail stores/shops that have QR codes if they've ever had people scan the QR codes. The most "positive" answer I heard was that they weren't sure. Some people stopped in front of the signs, but they weren't sure if they were scanning the code or following the link or sending an email/sms to subscribe.

Most of the time, it's a flat out no. I suspect it might be different in other places where there is greater awareness or density of QR codes though.

BTW, asking for a use case? Entering secure keys. Initializing OTP code generators. (aka Google Auth, which you SHOULDN'T have to ask about because it should ALREADY be active. Go do it, right now, mid-sentence, if you haven't) Potentially initializing 3 keys for use in a two-factor auth tool for phones and NFC tags. cough.