Watch the video and you'll see. He is just unapologetically argumentative, he trolls and has critiqued other people's work in detail and then dismissed them in public, but he is also right almost all of the time.
In the video, he enjoys trolling the video producer who is clearly trying to figure out who Satoshi is and who thinks they can do it better than everyone else as a professional investigative journalist.
Investigative journalists don't discover things... they report on what other people have discovered or want to leak who don't have an avenue to do it themselves.