It would feel better if we had one great feed reader, and an authoring pumping station.
The blurred lines makes it more difficult to comprehend as much.
Who moderates offshore content?
Whoever is in the pilot seat and that’s beautiful. Although if things start to get a bit too edgy we might see entire servers blacklisted from store apps. Also server-wide block done by administrators. If I’m not mistaken the largest mastodon instance is Pawoo.net and that’s basically a japanese board for posting controversial hentai artwork. Pawoo.net is blacklisted from most popular Mastodon servers.
I believe - although have not verified lately - that Tusky will not connect to some specific instances that host degenerate people.
I use Fedilab instead.
Slightly related Google blocked Element a few years ago because something posted on a federated instance. I think they strong handed matrix.org to implement moderation on the default servers.