I reckon the population of hacker news has drifted tremendously over the last decade. More content about the general grind of corporate tech industry, less focus on entrepreneurship. Many people in the tech industry who read and comment on HN are focused on exploiting the status quo and enjoying salaries offered by roles in large corporations
Perhaps one consequence of this drift is that people with more radical activist leanings, who are more likely to actually do something, are going to be more likely to hang out and discuss somewhere else rather than here
(i am not pointing any fingers, i haven't engaged in any kind of activism for years and grind away at the IT day job in exchange for salary.)
edit: the above argument lazily conflates people interested in tech industry entrepreneurship with people interested in activism. that doesn't make much sense, both groups will have quite different goals and often be in conflict. but i think there is definitely a drift where much of the people following tech industry news here on HN will be increasingly mainstream & functionally conservative.