Ask HN: Why doesn't HN like one liners?

Humour is proven to help you think more flexibly and creatively. Encouraging people to have a sense of humour and rewarding that frees their minds to think of more productive things, which in turn may create better quality content. A lot of workplaces use regular "games" to relieve tension, relax and change the "thinking mode" into something more playful. I completely agree with HN's stance on abuse, harassment, hate speech and negativity and am puzzled by its intolerance of oneliners and seeming lack of humour as a motif across even a small number of submissions. Given this, it's fair to ask, Why so serious, HN?