What you are describing sounds like the behaviour of someone who is passionate, righteous and perhaps obsessed. That is not the case in the case of Michael Novati according to Lars Lofgren's post. He is claiming that Novati's Reddit posts are entirely driven by profit motives, not to do with the truth or passion for the code bootcamp space.
No, I think you misread the post. The story about backstabbing Zuckerberg in a Risk game and boasting about it in his blog, I believe the author included especially to show that it's not just about the profit motive. It's far more about rivalry and crushing your opponents, he's basically saying. Clearly, spending so much time in a forum trash talking a rival (without disclosure) isn't a good investment of time, if profit is the sole motive.
Certainly, such people exist though. The picture he's painting of Novati is not something I'd find terribly surprising from an ex-Facebook code boot camp entrepreneur.