this post was submitted on 15 Aug 2023
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I do understand that you would remove them if they were also hosted here... But they are hosted on other instances so I don't understand the issue? Is linking to that specific instance via comment the same issue as if they were visible for everyone on this instance? Or even mentioning it now in the OP like it is?
It downloads to their instance, that's how the federation works. So it's effectively also hosted here.
If that's the case then OK, thanks for explanation.
No problem, and it makes sense from a technical perspective if you care.
Lemmy instances are not operated by a single entity, which means their uptimes are going to differ, possibly dramatically. If the federation simply linked to the other instances, then if say Lemmy world went down, all the instances that federate with it would have a lot of broken content.
Instead, what happens is that the content is still interact able on the other instances, because there exists a copy. When Lemmy world comes back online, content gets synced and merged from the instances that were still available.
It allows for a natural redundancy, so what you can do, is create another instance all your own, curate only the things you care about, and have that data populated on your instance. Then the next time we're in an upgrade cycle you can still view previous content from Lemmy world and others instead of constantly just getting a 503 error.