So everyone pretty clearly sees the 3. Why did I even float 8 out there then?
It's because the nature of his motivational advice is so dependent on the notion of a really hostile world, and they way to succeed in this hostile world is to basically stop being a whiny bitch and start fighting. That, and he seems rather fixated on the notion that insincerity is a bad thing. This is all about the honest truth, which you don't know because unfortunately the world is filled with phonies. I don't mean to be rude, but I think the 3 is among the least concerned with sincerity of all the Enneagram types.
The world is harsh, and people are always lying to you, but it's time you overcome that by stopping lying to yourself, and toughen the fuck up. I could hear an 8 say that, and I can distill that from the article.