As Skua mentioned, we don't have many defederated instances. In fact, we only really have one (lemmynsfw), as the other two instances are dead and were just causing federation issues. You may notice some of the other somewhat controversial instances are not defederated either, like lemmy.ml or lemmygrad.ml or threads.net (I'm sure there's more, but I don't keep track). I treat defederation as a last resort, as I don't want to be the one to curate people's content when users can do that on their own.

I'm not sure what your workflow is, but I would recommend rather than viewing "All" that you use "Subcribed" and only subscribe to the magazines you like. Or do you already use the subscribed view and a user from maga.place posted in a magazine you subscribed to?

This instance has a sum total of three defederated instances, so I don't know how likely it is that one will be added to the list. I know there is a "domains" page int eh "blocked" part of our settings, which implies to me that we can indeed block domains, but I actually have no idea how to do that

That said, god damn that is one sad-looking instance over there lmao. Rule 2 is frankly hilarious given the context