In that case you drew a general conclusion from a freak accident so rare that I doubt it had happened in the 17 years this site has been around. (Edit: 17 years this month in fact! https://web.archive.org/web/20070221033032/http://news.ycomb...)
If what you require from an internet forum is that the moderators under no circumstances will ever commit a copy/paste error, HN is definitely below your standards.
Edit: the mods would like to share that they weren't drunk when they made that mistake, just rushed and watching a rather gripping tennis final.
That prompted me to check other dates in the archive: apparently the "Startup News" title lasted for around six months before changing to "Hacker News". I was pretty sure the change was before I made my account, but I didn't realize the "Startup News" period had been so short.
https://news.ycombinator.com/hackernews.html
Edit: here's the last copy of Startup News that archive.org has—from 2007-07-13:
https://web.archive.org/web/20070713212949/http://news.ycomb...
and here's the first copy of Hacker News they have, from 2007-08-30:
https://web.archive.org/web/20070830111558/http://news.ycomb...
I guess they missed 6 weeks there, but bless them for having anything at all—who among us preserves our own history?