I find this moderately sad (do not share)

One study of 7,000 New York Times articles by two professors at the University of Pennsylvania’s Wharton School found that sad stories were the least shared because sadness is a low-arousal, negative state. People were more likely to share positive stories because it was a way to show generosity and boost their reputations. Sharing pleasant things in public made them appear nice themselves.

That is from a gated piece by John Gapper.  To paraphrase Robin Hanson, “sharing isn’t about sharing.”