Yeah, Leonard inadvertently gave away the game with that comment. Removing credit from a blogpost because you want it to be "succinct" is not justifiable. I think he's trying hard to pretend he didn't know any better; that excuse seems increasingly thin given the developments of this thread.

He just didn't care about other people.

Edit: it looks like Dustin from the same team at Microsoft shares the same hostility https://news.ycombinator.com/item?id=31284857