I myself do not have a strong opinion on the matter of the ethics of creating a billionaire business around a game that is so dangerous to everyone that plays it seriously, from high school to pros. I am instinctively against, but as long as the issues are clear, transparent and everyone involved have all access to information needed to do their own informed choices, it seems correct.
That said, a very brave and insightful tale on how these personal struggles are. Very well written too. And glad to know that there are effective treatments out there that can help this kind of health problems.