[RetroTechie]

Author is confusing a technology (QR codes) with some of its applications.

QR codes (the tech) is fine, can do things that you can't do (well) with say, a barcode, and/or is better suited than other technologies under some circumstances.

Some uses bad? Scanning QR codes stupid, the codes containing privacy-eroding identifiers, OSes snooping everything you scan, or whatever? Maybe - it depends.

A seasoned pro like this author (see "About" page) would do better to dissect one of those 'bad' applications, and explain how/why that application is bad. Not rant against QR codes in general - that makes no sense.