Why YSK: Beehaw defederated from Lemmy.World and Sh.itjust.works effectively shadowbanning anyone from those instances. You will not be able to interact with their users or posts.
Edit: A lot of people are asking why Beehaw did this. I want to keep this post informational and not color it with my personal opinion. I am adding a link to the Beehaw announcement if you are interested in reading it, you can form your own views. https://beehaw.org/post/567170
And this is why the fediverse will never work out - if I gamble wrong and set up shop on an instance that gets in a pissing match with other ones, I either have to make an account elsewhere (and then have to do it again later the next time two instances defederate each other) or live with only seeing some of my subscribed content.
There are already conversations about Nomadic Identities and what that would look like. Until that is done, I agree with you that there are going to be some issues, such as this. The fact that this is on their radar is very promising.
https://github.com/LemmyNet/lemmy-ui/issues/1571