In a nutshell, beehaw’s server and the servers of the other listed instances are not talking to each other anymore. If new posts are made from either one, beehaw won’t see them and vice versa. You can still pull up older, non-updated versions of beehaw communities/posts from before they defederated, but you won’t be seeing any more beehaw-related activity on them. You might even be able to comment there(?), but no one on their side will see it.

Until they decide to refederate, any further communication is cut off.