Personally I rely on Tim Cook and Elon exclusively.

There are, and always will be, far more relays than clients. It requires practically no effort to switch between relays from within a client, to achieve the moderation you want. Relay moderation > client moderation

Relays should be dumb pipes. If they start moderation, they become the gatekeepers

this feel too complicated. just rely on relay for moderation, right now relay feel likes a data redundancy layer on nostr, but eventually each relay will became its own social community focus on specific topics and interests and acts as a content moderation/curation box that user can plug-in

Would a model like pi-hole work? Something that sits between the relay and client, that does said filtering for you?