I wonder how old the author is. I "knew" the XXX convention was from CSRG, and Bill Joy would have been my first guess. I expect most people who worked with U

I wonder how old the author is. I "knew" the XXX convention was from CSRG, and Bill Joy would have been my first guess. I expect most people who worked with Unix in the '70s or early '80s would have guessed the same. I read a lot of Bell Labs Unix source, never saw XXX, and immediately noticed it when I got my first BSD tapes, especially in areas where Joy had worked. (BSD 4.1c, I think.) In another 30 years, this would be interesting archaeology, since hackers of that generation will all be dead. But today, it's just "ask somebody over 60 if they remember."