<p>There isn't really such a mechanism that I'm aware of.  </p>

<p>There may be a partial strategy available if the question is well captured by an existing tag, and you can assume the tags are used correctly (ahem).  In that case, you can search on the tag by clicking it, and you can sort the threads categorized under that tag by <code>Frequent</code>.  That will give you the threads that are most commonly linked by other posts on CV (think of Google's <a href="https://en.wikipedia.org/wiki/PageRank" rel="nofollow noreferrer">page rank algorithm</a>).  One way that a thread is linked by another is that it is the target of which the other thread is a duplicate.  It could also have been a "related: <code>[this Q](link)</code>" comment, which is somewhat useful, or a different kind of comment, which is just noise that obscures the signal.  Reading through the top returns can help you find a duplicate target.  Regarding your specific question here, the more threads that are marked as duplicates of a single target (or the more "related" comments posted to other questions), the better this will work.  </p>
