@Richard531 If the individual died in my home, yes I would want to know, strictly from a liability standpoint. Some states do require that you report a death in the home and its disclosed during any sale of the property. But I agree with you if the guest died in a hospital during the stay or passed away during some other activity that was included in the stay.
I tend to be very suspicious when strangers/customers/guests overshare as 9 times out of 10 it leads to some request for a discount, special leniency, or some other favor. If it happened to me that an elderly relative passed during travel and it affected my ability to do something with my hotel or Airbnb I would only say that we had a family emergency.
In fact, I am working on a house that I may do a LTR on, and recently posted a few pics on a neighborhood forum to gauge interest in rental. I got several reasonable responses and one that was paragraphs long detailing a husband leaving, a single mom with nowhere to go, young kids etc. I have stated when I am setting up appointments to view, and the ONLY person who can't seem to follow instructions is Ms. Sob Story who regales me with more and more details from her unfortunate situation. I am very much on my guard.