No, we are not getting any Beehaw posts from Beehaw, and nobody outside of lemmy.world can see any of the posts in question.

The only time we see any posts that say Beehaw, it’s because someone from lemmy.world is trying to post there. Nobody on Beehaw, and nobody on any other instance can see them.

Go to another instance and check the Beehaw communities. Posts created from lemmy.world aren’t there.