It's almost doublethink, people celebrating how the Fediverse is an open protocol for sharing public discussion and then going surprised-Pikachu at the notion that public discussion might be viewed by someone the don't want to view it.
If you don't mean for something to be public, don't post it on a public forum.
That's why I think the final iteration of the fediverse will be a mostly defederated bunch of echochamber bubbles. People don't actually want diverse opinions. They want a diverse group of people to share their opinion so that they can feel theirs is the dominant, right one. Give it 5 years and the fediverse will be just as much walled off and divided as the rest of the internet is now.
People like to complain about the evil's of humanity and yet always seem to act like it's forced upon us by some outside force. Like the 1% are a different species and not just glowing examples of our worst traits cranked up to max. Like someone else is making humanity act this way. But nah, it's just us and our nature. And until we understand and address that properly, none of our problems are going anywhere.
The point of the Fediverse is decentralization. The services don't have to talk to each other at all, but they all use the same open ActivityPub standard, so they can by virtue of what that standard is capable of providing.
If they wall themselves off, that's not an inherently bad thing. One gigantic public forum was never the goal. One where anyone has the opportunity (but not right) to participate is the goal.
And if you don't like how an instance is doing things, you aren't "just stuck with it," like you would be with a centralized service. By way of example, my instance doesn't have downvotes, and I would be unhappy with one that has that capability turned on, like lemmy.world. If Reddthat decided to defederate and do Local Only, I would leave and go to another instance, but Lemmy would still be there.
Yes it was. What crack are you on? From day 2, the second that shit was made public to college students it was HAMMERED into everyone's head that shit would be public. The boomers on Fox News knew this shit was public.