This one does the rounds on HN periodically: "You can't tell people anything" http://habitatchronicles.com/2004/04/you-cant-tell-people-an....
2021: https://news.ycombinator.com/item?id=28775517 (94 comments)
2020: https://news.ycombinator.com/item?id=23617188 (193 comments)
2018: https://news.ycombinator.com/item?id=17384703 (66 comments)