As have we all.
But since most of us do appreciate Scott not only for his music but also as a person and the journey he has made so far, lets just hope / pray / send good thoughts his direction that he can "overcome" this soon, too, and not just because of how it may or may not affect his singing voice. I think that is an appropriate thing for fans at a fan site to wish for. I lost my father to lung cancer. It was a horrible experience, and one that I would not wish on anyone else, ever.