I never understand these critiques. If something is useful and you’re selling it, does that mean any technical document describing its usefulness becomes marketing?

I guess maybe, but then do those documents lose value as technical documents? Not necessarily at all, so I don’t see the point. How are you supposed to describe a useful technical thing to users?

That's why I don't like these "model cards" being presented as if they are some sort of technical document -- they're marketing materials.