@crossmr I mean, what else would you expect people to post? Any new thing you learn is something you're discovering the existence of for the first time.
What sort of posts would you recommend? "TIL how to change a tire" with a link to a tutorial video? Not being sarcastic, genuinely asking, because I feel like what you're suggesting would exclude almost anything from being posted, unless I'm misunderstanding you (which I probably am).
E: I just took a look at some of the other recent posts, and I see what you mean. There's a lot of low-effort threads that aren't really doing much to encourage discussion.