Thanks! Wonderland v3.0 is a full sovereign setup now, not just a relay. For Cheshire Portals (went a bit wild with the names lol), I'm using npub whitelists for total isolation.
The rest runs on a 'Living Access' model, if your Heartbeat stops for too long, 'The Fade' shreds your data automatically. It’s more about keeping the RAM for active users than just blocking spam. Dm if you want to check it out, I'm not posting the passphrase publicly, I would like it to be a small trusted community.