I can confirm this, they are everywhere and people seem to like them.
Eg, I was handed a flyer for a random nightclub with a QR code on it for cheap entry. You just scanned the QR code then showed your mobile at the door for a discount. This was 5 years ago too (Tokyo, Shinjuku/Shibuya).
Eg, I was handed a flyer for a random nightclub with a QR code on it for cheap entry. You just scanned the QR code then showed your mobile at the door for a discount. This was 5 years ago too (Tokyo, Shinjuku/Shibuya).