@HistoPol @jamie @oliphant @snarfed.org @luca @PCOWandre @chronohart @snarfed The gist is that if you want to prevent your posts from being shared outside of screenshots and quote-posts (where the contents of the post are just copied) the only option is to join a whitelist-only server.
These are servers that federate only with explicitly approved servers, ie. if someone tries to connect from any instance not on that list they're blocked by default.
That's kinda the root of the argument here where a great many people have a false assumption that the fediverse is about control of your data when it is quite the opposite. It's like trying to protect your art from being used by others... by marking it Creative Commons.
The entire design of all federated systems is around open sharing, you can only get control over how your posts spread in a closed system with little or no federation.
As far as whether or not you use those platforms, my example was regardless of whether you're a user.
My server federates across multiple different protocols, if I boost your post then your post is probably being made available to multiple different networks automatically.
The protections and control involved in federated networks is not in how your data is shared, but in how your access is controlled.
In the fediverse you don't have to worry about a bad admin blocking your access to everyone you know, you can freely move accounts between instances. If you piss of Elon for instance, you're cut off from Twitter and everyone on it... full stop... but if you piss off your instance admin, you just move instances and can still connect with everyone.
It's also control over your experience in that you're not relying purely on what their algorithms think you should see. If the instance your on has an algorithm set up that you don't like, then you can move instances to one that has the algorithm you like.
You also have protections against enshittification (the process by which those other networks will draw you in with great features, and then once you're locked in slowly shut down or degrade those features). If features that are important to you start getting shut down on your server... you can move to one that keeps them. If a platform developer does it, another developer can fork the project to keep those features alive.
You also have choice in terms of clients and experiences. You're using Mastodon and I'm on Friendica (I know your instance type because Friendica shows me a little icon beside posts). I vastly prefer the Friendica experience, and I have the choice to use that. And I can use that without forcing you to use the same interface.
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