Misleading/wrong posts don’t usually spoof the origin - they post the wrong information in their own name.
You could argue that that’s because there’s no widely-accepted method for verifying sources—if there were, information relayed without a verifiable source might come to be treated more skeptically.
No, that’s because social media is mostly used for informal communication, not scientific discourse.
I guarantee you that I would not use lemmy any differently if posts were authenticated with private keys than I do now when posts are authenticated by the user instance. And I’m sure most people are the same.
Edit: Also, people can already authenticate the source, by posting a direct link there. Signing wouldn’t really add that much to that.
You could argue that that’s because there’s no widely-accepted method for verifying sources—if there were, information relayed without a verifiable source might come to be treated more skeptically.
No, that’s because social media is mostly used for informal communication, not scientific discourse.
I guarantee you that I would not use lemmy any differently if posts were authenticated with private keys than I do now when posts are authenticated by the user instance. And I’m sure most people are the same.
Edit: Also, people can already authenticate the source, by posting a direct link there. Signing wouldn’t really add that much to that.