They are seen as a
I'm mystified how that works. Its not like QR codes are inherently toxic by shape, like prions, nanoparticles, or asbestos fibers.
Using the phrase 'Environmentally Friendly' is how you get liberals to use (or at the very least not blacklist) your product whether it has anything to do with actually being helpful to the environment or not.
If you're not careful, you're going to catch something.