I’ve noticed that old posts can not be edited. Maybe to avoid them being brought to the top of the list? That’s a good thing I guess, but being unable to correct broken links or other outdated information is not ideal.
I wonder if it’s possible to allow edits without changing the date or without bringing the post to the top. Any ideas?
Is it very old? There is a limit on how long posts can be edited, to prevent weirdness around editing in spam to very old posts by a compromised account – you can adjust this time interval in site settings.
I think admins can edit posts right? What about listing in this thread who to contact in such cases, so a manual edit can be performed? Does it make sense?
It would be much nicer if it was not necessary to bother anyone. One way it might work (something to suggest in the Meta Discourse) is if there was an option to allow minor edits (edits affecting only a URL or a typo). Or even more minimal, Discourse itself could notify the original author about 404s and let them replace the URL
Maybe character count? I know it can be tricky, for example you can just add no to your old sentence to make it look like you said the opposite… Maybe a simple approach would be to mention “only typo corrections and URL fixes are allowed. Other changes will be rejected”, and then such changes must be accepted by an admin?
It would generate traffic indeed. I have no idea about how many URLs there are stored in the DB. Maybe checking URLs only when someone clicks on a URL and offering the original author to replace the URL when it’s broken? I do not know about security issues in this exact context, someone else should look at that.