I'm not hip but I am much younger than much of HN (heck my sibling is in their mid 20s), but even I'm getting old and increasingly out of touch.
And that's what happens - tastes change and mindsets change.
People who were born in 1993-97 are already planning to or are already married, and planning to have their first child (the median age for a woman having their first child in America is around 27-28 [0]), and have a different set of tastes and views than someone who was at a similar stage in their life in late 2000s or early 2010s.
Based on the references I see on HN, a large portion of commenters seems to be in their 40s to 50s, with some younger straddlers in their late 20s or early 30s.
[0] - https://www.axios.com/2025/05/07/birth-rate-states