Probably they just do it for the lolz at this point.
Also, some people are REALLY stupid, so maybe it still works for that type - e.g. I hear that Tucker Carlson is still asking questions trying to get to the bottom of it all!?
How could someone fall out of a window, then accidentally shoot themselves in the back of the head, then fall down a flight of stairs, then shoot themselves again!? Maybe if they...
It is a mystery, because if a detective starts a proper investigation, he or she will fall out of the window as well. And if you can't investigate, it's technically a mystery.
What if, in Russia, a window became sentient and started to publicly criticise the government…it would be unbeatable, right? Because a window can’t fall through itself, right?