Take this question: What are some typical uses of hard links?
I found the exact same question in the Unix&Linux Stack Exchange site: Why do hard links exists?
Should I post an answer with a link to this question? If I do, it gets converted automatically to a comment.
Normally, we would discourage short answers with just a link. However, considering that the link is pointing to another Stack Exchange website, where answers can be edited and voted on, surely it's OK?
I can't flag the question as a duplicate, because the duplicate isn't on Ask Ubuntu.