Worst, up until the current fiasco, was having told a very deeply personal and unique story, but being torn to shreds because I wrote it pretty. That meant it had to be fake.
It taught me the lesson to never waste effort on reddit.
But the best was kinda the flip side of it. Similar thing, talking about death and dying, which was a large part of professional life, and despite writing it pretty, it resonated with people and I got some really nice conversations commiserating about the way that can change you.