They do now.
Top AI researchers in China are barred from getting an exit visa [0] (the PRC has done this for other employees as well such as Foxconn China employees who were working on shifting Apple supply chains to India [1]), and "AI Safety" from a national security perspective has been codified as party policy now [2].
The leading Chinese AI labs are also shifing away from open-source AI for commercial reasons, as can be seen with the org changes at Alibaba with the axing of the Qwen team [3][4].
That said, these are called out but it's all in Putonghua and no one on HN actively reads or follows what happens within China. I've noticed most HNers now source information from Reddit which has been dealing with DRAGONBRIDGE deluge for a couple years now, and I've noticed similar tactics being applied on HN as well.
In all honesty, I've found HN's noise to signal ratio to have tanked severely since 2022. Silver lining is that less people that matter are using it as much, so the IW impact is limited.
[0] - https://www.bloomberg.com/news/articles/2026-05-26/china-exp...
[1] - https://www.bloomberg.com/news/articles/2025-01-17/china-mov...
[2] - http://theory.people.com.cn/n1/2026/0616/c40531-40741238.htm...
[3] - https://m.guancha.cn/economy/2026_06_12_820253.shtml
[4] - https://www.ft.com/content/b39da303-3188-447b-8b65-3dd8dad8b...