Yes. It gets added when someone in the computing world passes.
> someone in the computing world
Notable / Prominent people. Many hackers die every day, but some are so privacy/security conscious that nobody notices.
> Occasionally, there will be a thin black bar at the top of the top bar, in memoriam of a significant figure in the tech/science community dying. A Hacker News submission about the death will usually be on the front page at that time.