It's not about being superior he's posting on bitcointalk the audience would be very familiar about the sequence of events. It's posted in "speculation" I.e. It's a hypothesis based on what everyone in the bitcoin world observed and he created a plausible yet possibly completely fictional technical hypothesis for what happened behind the scenes. There's no "sources" to back it up.

It's like when HN goes offline. It's an observable fact. Writing what you "think" happened to explain this fact is the speculation part.