Gigi on Nostr: Fiat = by decree. If you are on a platform, you are on said platform by decree. The ...

Fiat = by decree.

If you are on a platform, you are on said platform by decree. The king in charge can ban you or refuse to host you in the first place.

The King says "I allow you to be here, and you can only speak because I allow it." That's fiat social media. All social media that is not running on open, permissionless protocols.