"These are problems that QR codes solve." Agreed. In fact, I don't know what people use Oh By codes for ... but they do, in fact, create them and even purchas

"These are problems that QR codes solve." Agreed. In fact, I don't know what people use Oh By codes for ... but they do, in fact, create them and even purchase them. I will point out that it is difficult to "tell" someone a QR code over the phone ... or shout it to them ... or chalk one of them up on a wall, etc. Oh By codes solve this problem (to whatever degree this is a problem to someone).