> Advocates of each of these projects of course would dispute this, pointing out that you could always self-host, or somehow avoid depending on their semi-official infrastructure, but the truth is that if you're not on bluesky.app or warpcast.com, you don't exist, and nobody cares that you don't exist.

Aren’t nostr adepts of mythical outbox who consider anything server side to be an evil centralization from “them” saying the same things? “No one guarantees relays keep your posts but you can always selfhost and no one will care about you and this is a good thing because Nostr is a pure signal and we don’t need stupid normies here!”