Its rare, I did only few on my own threads, which started as a questioning thread to buy a new T&M, and the thread turned into discussions, while in the middle discussion, I bought it and did a teardown.
At that specific post that has the tear down post, I did rename the post's title as reference, hopefully to aid searching in the future.
Example at this thread ->
HERE which started as questioning thread, and in buried in the middle of the thread this particular post ->
HERE, just watch this post's title.
Also did this few times in my gigantic Tektronix 2465B thread, main purpose is just to improve the visibility of search result.