If an application stores its configuration in JSON, and I edit it by hand and leave a commented ‘// I did this because the other way was broken,’ then I open th

If an application stores its configuration in JSON, and I edit it by hand and leave a commented ‘// I did this because the other way was broken,’ then I open the application and change the configuration there … then I expect my comment to survive. XML preserved whitespace, too! I dislike XML intensely, but there was a method to its madness. There’s a method to JSON, too: simplicity and usability. You start adding things to JSON, you lose that.