To my knowledge, coverage of the journalism industry isn't a huge part of the news cycle, certainly not as much as coverage of the software industry is!
Anyway, there's plenty of stuff on HN that isn't about software development: in the top 10 front page articles right now, there's a news story about an Albanian cyberattack, a link to WikiHouse, a warning about a potential privacy breach on virtual meeting software, product announcements for YC Summer 2022, etc.
It's more "stuff that may be of interest to people in the software industry", and I have no trouble imagining how you could fill a link aggregator with "stuff that may be of interest to writers".
It could be that a wave of similar sites will emerge for a bunch of niche topics and it just so happens that hackers were on the internet first. That hypothesis matches the data too.
This is functionally not the case with engineering schools. Are there any experienced CS or CpE majors working as journalists for major mainstream media organizations? There may be, I honestly don’t know, but they are at least rather hard to find.
Hacker news exists and has value in part because what we had before were predominantly press releases and wikis run by often a single person. Writers with very few exceptions didn’t have the depth of practical experience necessary to provide insights and context, while technology needing commentary was rapidly emerging.
A lot of the early would-be peers such as slashdot and ars got absorbed by media companies and now they are not the same. It helps that HN does not have to make money, and from what I have seen is extremely well moderated.
The original point of issue was the claim that industry-specific news pertaining to writers isn't needed. Whether or not computer scientists are writers has nothing to do with the incorrect claim, which I've given examples to portray its incorrectness.
