Hi Dang,
I hope you're well and always appreciate the context you bring to articles like this. Is there a way to turn this into a feature where similar submissions are linked?
Edit: By the way, if anyone has a bright idea about how a community-driven past-thread-references feature should work (which, note btw, includes duplicate detection), I'd be interested to hear them. Emailing hn@ycombinator.com is probably best.