I'm skeptical that what was interesting was unique to Moldbug, or that what was unique to Moldbug was interesting.
Does he even claim much in the way of originality? The only obviously new thing that comes to mind is Patchwork, which is indeed stupid. But it certainly seems like he's mostly a convert to an intellectual tradition that is at best marginal but was once much more popular. Carlyle, Froude, de Maistre, Schmitt, he's mostly not claiming to be the source of his big ideas. He's a pretty decent sociologist or political scientist at times but mostly he's just a man out of his time, which appears to be somewhere in the 1800s.
http://unqualified-reservations.blogspot.com/2013/01/noam-chomsky-killed-aaron-swartz.html
Summary: Moldbug on the Aaron Schwartz affair. Power is a very real thing with real consequences for activists, yet many people don't understand the nature of power in modern times. People like Noam Chomsky get great fame doing bad epistomology about who has power, and as a result do great harm to idealistic nerds who don't read between the lines to selectively target their attacks at weak institutions (Exxon, Pentagon) instead of strong ones (State, academica incl. MIT).
Here he returns to a theme that is one of his real contributions to blogospheric political thought: that victory in political competitions provides Bayesian information about who has power and who doesn't. If your worldview has the underdog somehow systematically beating the overdog, your epistemology is simply wrong - in the same way, and to the same extent, as a geocentrist who has to keep adding epicycles to account for anomalous observations.
This means that activists like King, Schwartz, and Assange are only effective in bullying the weak, not standing up to the strong (despite conventional narratives that misassign strengths to institutions). When such activists stop following the script, and naively use the same tactics to attack strong institutions, reality reasserts itself quite forcefully: