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
I think it's also important for the this context to understand what beehaw is. They are an instance specifically created to be a more friendly, empathetic community. That made them a bit of a target when the migration started happening, as you might imagine.
Ultimately, they can do whatever they want. I understand that decision might rub some people the wrong way, but in the end it's their community.
Frankly, after seeing the downfall of other reddit alternatives like voat, I think they're justified. Young internet communities seem to be prone to being overrun by trolls and neonazis.