Not a true statement. Where are you searching? I can find nothing to explain this other than the comment below about someone dying, but that doesn't explain anything either.
At the bottom of this page is a search box. Into it type "black bar" (without the quotation marks). It takes you to this link:
https://hn.algolia.com/?query=black%20bar&sort=byPopularity&...
Have you not seen the search box at the bottom of nearly every HN page? Perhaps that question sounds a bit brusque, but in effect, whether you meant it or not, you called me a liar, and I rather take exception to that.