A label is a source, a subject and a value, signed by a labeler's key; users choose labelers and the app requests their labels; what a label does is set outside the label (the labeler suggests, the user adjusts, the app enforces); takedowns at the host are a separate lever.

It separates speech from reach and lets moderation be composed.

A label is a sticker on content or an account. Who put it there, what it is on, and a short value: spam, nudity, whatever the service that issued it defines.

Labels are signed by a labeler: a service with its own DID and key.

You choose which labelers to listen to. Your app asks for their labels by name on every request.

What a label does, hide, warn, blur, is set outside the label: the labeler suggests, the user adjusts, the app enforces. Speech and reach are two layers.

A host can still take content down outright. That is a different lever, at a different layer.

Check yourself. Who sets what a label does to a post?