Which is why it didn't last. When there was a novelty to it, people tried posting things to see what happens. Being something new, they didn't know what to expect. But soon the novelty wore off and the stupid and sentimental revealed itself as being cringy.
As such, the people made it clear that if they were going to continue to produce, they wanted tighter and tighter control over who can see it. They wanted private chats and closed groups, not a global newsfeed for all to see. Which, indeed, Facebook delivered on, but that also destroyed the "what I did today" content for the casual observer.
So, that left Facebook to draw on professional (or wannabe professional, at least) content creators to fill the void. And here we are today.
> I’m sad the world now looks like a worse place.
There does seem to be a missing gap in news about regular people. Before Facebook you could read the newspaper to find out what your friends "did today". Seriously, look at newspapers from the last century. There are pages upon pages of stories like "Mr. and Mrs. John Smith invited Miss Jones from Nantucket to stay at their home this past week. A good time was had by all."
But maybe lacking that isn't actually worse. Perhaps there is something to be said about staying close enough to your friends that you already know what they "did today" without having to read an account in the news?