If you raise the subject of QR codes among tech early adopters, you are likely to elicit a passionate response. Some people think QR codes, those scanable black and white squares on everything from billboards to product packaging, are on an unstoppable growth trajectory, while skeptics are quick to dismiss them as a fad.
This reaction is common whenever new technology formats or standards are being decided upon. Pundits want to exhibit their knack for predicting the future and stakeholders (of which I am undeniably one) want to make sure their format wins out. The general public, meanwhile, tends to lay in wait for a particular format to show dominance.