Yes, but for some relays, you need to be inside the WOA (database).

Sure, but this is a totally different and specific use case. I'm talking about the standard outbox config that you use for social media / long form.

Many people don't like the idea of their posts being available for everyone and restrict who can see themselves by auth.

But if I can just create a fresh keypair and use it, the auth barrier makes little sense.

If they block by a white list, the new key won't work

If. I doubt this is the setting of a standard relay for social interactions. Do you know a relay that have a similar settings, maybe controlled by a WoT?

I tried to find it again, but this was common about 8 months ago or so. I remember seeing 3 or 4 users with issues because of those rules. I am not sure if they are still around. But I can see this growing, since each app now has its own Nostr sub-community. With 40,000 relays now, things are starting to diversify beyond the standard kind 1 use cases, finally.