First of all I do understand them, and I can care less if you believe me or not. Second of all I disagree with the entire method of war. You can't quantify on paper how many more wins one player is worth over an other. Third of all, there are different war methods. Fangraphs has one method and baseball reference has another. I'm sure there might even be others out there. If it was a reliable stat you would be able to get the same War in each method, but that is not what happens. Each method has different wars for each player. Use on base percentage as an example. Fangraphs and baseball reference wouldn't come up with a different on base percentage for the same player because it is a quantifiable and reliable stat. The player came to bat X amount of times and got on base X amount of times. It's that simple. Lastly, WAR takes heavily into account fielding metrics. All fielding metrics are flawed. There is no precise way to quantify on a stat sheet a players defensive worth. There are just to many variables in each play that happens on the field (which I assume you don't watch) to measure defense as a metric.