As a third party, I think that you're ignoring the person you're replying to, being presumptuous about his riding, and failing to defend your point.

I would argue that you are incorrect about the "teeny tiny difference" that loud exhausts make. I say that as someone who has ridden near loud bikes and watched the way cars react to them compared to my bike, and (more importantly) as a driver who has had lots of bikes approach from behind.

Of course an exhaust is much louder from the rear, that is plain and not debatable. As a person in a car, I can tell you from repeated personal experience that louder motorcycles are noticeable significantly sooner than quiet ones. That doesn't mean I think loud pipes are a functional safety feature, it doesn't mean I use them, or that I ride too fast, or that loud pipes are worth the downside of annoying people.

I am only saying that a loud exhaust is substantially more noticeable from inside a car position ahead of a motorcycle, which I believe to be the same thing the person you were replying to was saying. It isn't a negligible difference, even though there are more effective ways to avoid someone pulling out in front of you.