I think that it is one of the beauties of APUG that thanks to the diversity of its members' backgrounds there are so many ways to explain a concept, or solve a problem. We all think and work differently, some prefer more intuition and practice and others like to get a feel for the underlying theory. I'm fairly new to film testing and plotting curves, but as a person who appreciates formulas, numbers, and logic, I find that the curves and testing have greatly helped me understand the holistic nature of the tone reproduction process. Prior to that, I was quite happy practicing by feel, with whatever precious feedback I could get.
Sometimes we get too attached to our own way of thinking, I suppose, and you may see a bit more heat coming through some arguments, than needed. Enjoy the path, don't be afraid to ignore what doesn't feel right but brave some ideas even if they may require a bit of work to follow through.