I think he's just going on the .9% fee, as that is all that kano makes besides his own miners.
And I have heard directly from Kano that he does not run his miners unless he needs his house warmed up. All of my discussions with him demonstrates that his primary mission for this site is the heath and future of bitcoin. And yes, he probably does all right with the fees too - although having close to a dozen servers around the world is also not free.