Partially. It’d help a little bit. But if you federate with another instance that doesn’t block it, that data will still get out.
Essentially the protocol would have to be updated to carry a blacklist that all instances would adhere to, but basically via an honor system.
The only method that could truly protect your data would be whitelisting, but that would severely hamper and fracture the fediverse.
Everybody, please understand what defederating means. It will not stop the defederated instance from getting the data. It just means you don’t pull theirs.
If you want to actually control who gets data, you’d have to switch to a service like Streams. ActivityPub cannot prevent anyone from pulling data. It only allows an instance to decide not to pull from a specific location.
We don’t know what they’ll do yet as there’s nothing in the article about what they do with the data or how the protect it.
Setting everything to private by breaks the fediverse pretty much. Imagine if everyone on Twitter was only private. It severely limits everything.
A “public” instance is just one that publishes to other instances if I understand correctly. So they would get the IP of the server instance. Which most instances actually do.
This wouldn’t matter. Defederating means you don’t pull their data, not the other way around.
The article is just describing how ActivityPub works. What would be more important is how they claim to use that data. But that they collect that data is inherent to how the protocol works. They’d have to mention they collect it legally.
Email does that too. It’s even worse, you can make “support@microsoft.com” show up but it’s really badguy@somewhereelse.com. Granted, many emails hosts are getting better at flagging these, but one can still click the name to confirm on Kbin or Lemmy.
No, they absolutely do. The problem is generally affording scalability and high availability. Those aren’t just free with the right code. Those are essentially features that need to be paid for by the instance owners. The fact that Lemmy works at the scale it’s at is a sign that they pay attention to those things.
Looking into it, aren’t both of these only Mastodon and not part of ActivityPub itself? I can’t find details on them outside of Mastodon.
And what prevents the post from getting published to other instances from different sources?