I would imagine that it's possible that some of the people reading these comments might already know a lot more detail about Twitter/Facebook bots than this story goes into. Although you fine folks might remember me from a few other projects, I'm currently a Graphics Editor at The New York Times. We're actively curious and interested in pursuing lines of inquiry about this sort of behavior, and if any HN'ers have any…
It's impossible to win a competitive SEO game without a PBN for link manufacturing, a bunch of lackeys and bots posting on astroturfed accounts, and so forth. I learned that if I'm going to do another business that depends on traffic, there will be no option but to spam and turf aggressively.
Google's dirty secret is that it's been completely and thoroughly gamed for a long time now. People are just used to sorting through the crap.