TL;DR: This is about a hiker who went by the name Mostly Harmless who was found dead in his tent. No one knows how he died. That's it. But for the unusual name, it seems safe to say that this would not be on the front page of HN.
I think the way they ID’ed this John Doe (trawling forum posts, DNA testing and advertising) is pretty interesting and I upvoted on that basis. It’s also a partial answer to a mystery that was pretty widely shared around the internet, so is interesting on that basis as well.
