• kartonrealista@lemmy.world
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      2 years ago

      It opens a link to a post in its own instance. So for example

      this is how your comments looks for me with this button. As you can see I’m not logged in, because it’s a different instance compared to what I use. This is what things look like when I click the chain icon to the left of it:

      Here I’m logged in, because it’s your comment opened through my instance.

  • puddy@feddit.de
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    2 years ago

    I get it, it’s such a nice and shiny icon it gotta do something good!

    • loiakdsf@discuss.tchncs.de
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      2 years ago

      It points to the lemmy instance the post has been published on. It is useful if you want to share a generic link to a post with someone and maybe don’t want to share the information on what instance you created your account on, because the other permalink button always references to the instance of your account.

      • mountainmycelium@beehaw.org
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        2 years ago

        Ohhh! So, if I’m understanding correctly, I can share that link to another… Instance? And it cuts me, the middleman, out of the link chain, kind of?

      • Jamie@jamie.moe
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        2 years ago

        Also very useful for checking the sync on a post for people selfhosting. I made a thread about it earlier today because my instance is missing a number of comments, and it seems like it’s happening to quite a few of us. Ironically, my instance is missing 6 comments from my own post compared to the lemmy.world copy.