Earlier quoted context omitted.
It works, 4 million dollars a year can attest to that. So even though I intensely dislike it I can't really argue against it.
The same "I can't argue with it because it works" logic can be used for startups who "growth hack" their way to success even if it means harassing their users with interrupting modals and deceptive links. That doesn't make it unimpeachable. Atleast with PewDiePie, you know what to expect.
These exist? I mean, obviously the 'growth hacking' exists. Is there an example of a startup who managed to build a real business solely on the basis of these tactics? One that 'you can't argue with'? I wouldn't call Groupon a real business.