QR codes are still idiotic and the worst idea(well, using them for what they're being used for is) since the first computer.
People don't scan QR codes, people don't want to scan QR codes. MAYBE if the camera on a phone ALWAYS was working, and it automatically and intelligently detected QR codes and scanned them in for you, but intelligently so not every time the lens passed over one.
but yeah, what everyone wants to do is find a silly square code, open a special app on their phone, attempt to "scan" the QR code, get redirected to a website in ANOTHER program ... the whole idea and implementation is laughable. And they will die now that NFC is starting to take of and NFC can be implemented in stuff, and they work automatically, just touch the phone to to and voila, not that I think peopel will be using them much for such purposes either but at least their implementation works a million times better for the purpose.