If I wanted to read about random factoids, I'd go to /r/TIL. I come here for Rust. I flagged the OP FWIW because it's not related to hacking and it's not even news.
I disagree. Such stunts are well-known tradition in hacker culture as well.
Why comment at all? Just downvote/upvote and move on.
Somewhat coincidentally, I recently started my serious, systematic study of it. E.g. right now I'm working through the English book that's the single, detailed history of all naval actions in what was truly a world war: http://www.amazon.com/gp/product/0870212664/
In other words, it has a lot to do with "hackers" and is a very interesting and relevant piece of history. I agree it won't help you start your startup though; get back to building things and talking to people! :-)
The HN guidelines on what to submit:
> On-Topic: Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it to a sentence, the answer might be: anything that gratifies one's intellectual curiosity.
The HN guidelines on asking why something was posted:
> Please don't submit comments complaining that a submission is inappropriate for the site. If you think something is spam or offtopic, flag it by going to its page and clicking on the "flag" link. (Not all users will see this; there is a karma threshold.) If you flag something, please don't also comment that you did.
It might be worth reading through the HN Guidelines. They're pretty concise: https://news.ycombinator.com/newsguidelines.html
I can't find a guideline that's meta enough to tell me not to mention the guidelines, but I've blundered in worse ways before.