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Which instance should i choose when i share a link?
(piefed.social)
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Theoretically, it shouldn't matter.
In the ideal case every connected server should host a full and complete copy of the data from the originating server (as xkdrxodrixkr@feddit.org says, that's B)
Reality is a bit different, but not enough to warrant always picking B. Just share whichever you'd like, but B is the most right.
C is most correct canonical URL actually. See the HTML at the bottom of this screenshot
More info: https://github.com/LemmyNet/lemmy-ui/issues/1418