FWIW, it's started appearing on conference badges in some circles: Name, affiliation, role, pronouns.

That's a bit dramatic to my comment, imo. You could say the same for police, or any institution that uses identifying information - even uniforms.

Like it or not we all have piles of metadata that follow us around. A big one is our face. It won't take long for facial recognition to do the same thing I mentioned in the previous post; except you won't have a choice then. Hell, you won't even know.

The metadata badge idea was of course not serious; but it doesn't seem so farfetched to me or absolutely terrible. It (as I proposed it), at least, would be something you controlled.

Which, unlike state IDs, licenses or Nazi' camp badges are not something you would control.

I do not appreciate the extreme association with a free-thought idea to that of the worst massacre in history. I'll assume you meant no harm, but still - I figured I had to at least express clarification.