[timae]

There are two types of people in the world. Those who hate QR codes, and those who don't know what they are.

[jonesetc]

Or rather, people who grossly misuse them, and people who realize there is a time and place.

[brianbreslin]

In their original use case (inventory management at Toyota in the early 1990s) they made sense, for ticketing they are hit or miss. I personally dislike them even though we use them a lot. I thought they were overhyped about 4-5 years ago.