That’s weird, was this article edited after being on the HN front page a few days ago? I distinctly remember the article mentioning social networks being built in SF in South Park, but now that section says “ I have vivid memories of the ferment of the late 2000s, a new social network flaring up every week! I lived in San Francisco; they were building them in offices around a narrow, scraggly park” which strikes me as odd phrasing.