[discordianfish]

I think this is a great idea. I'm surprised to see so many negative feedback. To me the great thing about it compared to a QR code is that you can draw it by hand which also means you can cheaply make it as big as you need it.

The aspect that it depends on a central service make it less dependable than an QR code and I'm wondering if this could be fixed. Still, I think it's a really interesting idea.