For me it’s detailed describtions about people’s dreams.
Not only doesn’t your story make any sense, but you’re also telling me about something that didn’t even happen. It’s kind of like telling about an event, and then ending the story by saying you just made it all up, except with dreams you begin by telling it’s all made up. I’m already not interested before you even started.
Medical topics become more and more important as we age. You never know when you might learn something helpful. “That happens to you too? And did the fix work?”
Hell, you might learn about something that doesn’t affect you, but you can pass it on. For example; Dad didn’t have hairy legsm but a guy in bootcamp showed him how to put on socks if you do. :)
One upmanship is boorish not matter the topic.