We will never know if the number of fans and the quantity of hubs (notwithstanding the quality of hubs) is directly proportional. The people here are smart and they know if somebody is bluffing or not. People have their own areas of interest and somehow if you catches their attention, they want to be included in your fan list.
I used to think that I would always have more hubs than fans. Then I started thinking that I would write a hub for every fan I had. Now... I'm at the 1 hub per fan. At some point I'm going to have give up this method. But it did work for a while.