Not really a scam, he was pretty up front about it.

Imposter syndrome just limits you. Nothing wrong with fake it 'til you make it. If you’re not doing it, someone else is. Just base your opinion of them on what you see, and act the same regarding other’s opinions of you. Actions speak louder than words.

I too watched Death of a Unicorn

Bill Nye: “Everyone you’ll ever meet knows something you don’t”