So, comrades, I learned that, apparently, lemmygrad is blocked from other pretty popular but liberal (liberals block others, lol) instances and I don’t quite understand how that works.

I can’t see posts that were made from other instances? I’m using Jerboa and have an account on lemmygrad and I can see posts from lemmy.ml, but, I guess, I can’t view even non-political posts like memes from instances that blocked lemmygrad?