That doesn’t seem like a helpful reply. The vast majority of people wouldn’t feel comfortable trying to stand up an instance, and most don’t want to administrate one, but even if they did, it doesn’t address the issue in question. If I want to stand up an instance and be federated with a different one, but they have one community that’s problematic for me, I still have no recourse but to defederate from the whole thing. The suggestion was to provide admins with the capability to block a community at the instance level, and that actually does take care of the problem.