This feels like an issue studied through a keyhole: You can do a study that makes underscores seem advantageous. And in a vacuum, a global with an uppercase nam

This feels like an issue studied through a keyhole: You can do a study that makes underscores seem advantageous. And in a vacuum, a global with an uppercase name otherwise identical to a local with a lowercase name looks like a debacle waiting to happen. But, with a modern IDE, some combination of color, bold, and italics enables coders to easily distinguish among these seemingly inadvisable symbolic names. And if you want to find all uses of a name, that's easy.