This platform can definitely grow rapidly if developers keep doing the good work because it is niche-based. There are lot of us who love sports. I, for instance, have passion for soccer and basketball... Baseball is not my favorite, but I've watched and played in lots of games since I was a kid.
Anyway, this is another window for fans to express our opinions. Sometimes we want share our inputs. Sports is more than a hobby. It is sometimes an escape from our daily busy routines, and we can't help to put emotions on it now and then.