@xgranade@wandering.shop You can't really defederate *servers* (from other servers) in general without breaking things (the protocol works very differently from AP), instead you're supposed to do this on a room level via the ACL
@xgranade@wandering.shop (This doesn't fix the invite spam issue which *should* be blockable on a per-server level, but isn't... at least in Synapse, afaik)
