yeah, i like the idea of public readable, subscribe to write, and for the relays to proactively aggregate the content of user's follows on other relays

then you just pay for one relay and except for posting DMs to you (which need to be from whitelisted users, to your paid relay, which protects their privacy with auth) all of your content is found and you can access it in one place.

with many such relays, they will dynamically aggregate relevant data for users and when one path is blocked, other paths can be found and new relays can be placed on them (which can be as simple as adding an IP address and/or domain name to access the same relay).

having tools to rapidly and simply spin up new relays and using aggregation spiders will keep the censors hopping from one thing to the next and never really stopping the leak.