Agreed. Anything over 3000 followers, or so, is usually just "Because I'm big in Japan" and reveals no additional information about their behavior on Nostr, in particular.

We have npubs with high follower numbers, that are just RSS feeds. We have highly-trusted npubs, that mostly write on slightly obscure or technical/academic topics, that have surprisingly low follower counts.

We also have npubs that go to meetups, that have low follower numbers because they're mostly reading, zapping, and reacting, on Nostr, not writing notes.