Like I said, I didn't know how to actually check, which is why I asked as I did. Thanks for letting me know that lemmy.ml and lemmygrad don't have the other one blocked, I will dm their admins about that. If you're a user in good standing, I'd suggest asking your own instance admins about not blocking these two.
I DM'd a lemmygrad admin, next I'll do so for lemmy.ml now that I can access the site again.