I address that in the comments at <https://www.filfre.net/2022/05/a-web-around-the-world-part-1...>

I'm not particularly convinced, a mention of the arpanet is a mention of the arpanet, and keeping quiet means keeping quiet.

I can believe that Pournelle was being the kind of person about whom one might write "most of the irritation came from a handful of people, sometimes only one or two" and that was the real reason he got kicked off, but that's a long way away from being censored for politics.