What the article doesn't particularly emphasize is that "kgbvax" etc. wasn't a troll along the line of "OMG they're stealing our technology". It was just that a lot of Usenet nodes of the day had "vax" at the end of their name because, well, that's what everyone was running for internet nodes in those days (running 4.2BSD or so, the definitive Unix to have in those days).