Beehaw defederated from lemmy.world. So anything that a lemmy.world user posts on any instance in the fediverse will be invisible to beehaw users. Any posts made on the beehaw instance won’t be updated to lemmy.world users after defederation. The local “cached” version of various beehaw communities still exists on the lemmy.world instance, so we can view that and comment/post/vote there. However all that activity stays on our instance and is invisible to any users from all other instances.

In practical terms, it means we can’t participate in any beehaw communities. We can see posts made by beehaw users on other instances (say a comment by a beehaw user in a lemmy.ml community), but the beehaw user won’t see any posts made by a lemmy.world user.