So your position is that because of one idiot who happens to live next door to you, who must have grown up without a mother to instruct him in manners and common decency, what I have to say on the subject is “not substantiated”?
I have been riding a motorcycle, in one form or another, since I was 16 years old. As I am now 62, that would make 46 years of riding experience according to my math. I can substantiate for you the fact that a loud, deep, throbbing sound will attract the attention of a driver in a car long before the extremely bright reflection of sunlight glaring off the surface of a 700 lb., black and chrome machine heading right towards them ever will, and that’s not to mention the bright headlights that the bike is required to have burning at all times in most states.
Why do you suppose that emergency vehicles have sirens? Shouldn’t the brightly painted vehicles with all of the flashing lights be enough to keep some idiot from pulling directly into their lane of travel?
Unless you ride one, STFU and go sit down.
I do ride ,, a Triumph ,, and loud pipes are simply obnoxious. They truly add nothing to safety and in many cases they add little or no additional power (unless a/f ratios are adjusted). All motor vehicles are restricted as to the amount of noise they can make (measured at full throttle in the lowest gear that can be maintained for the test at a measured distance from the side).. and for good reason. If you feel you’re above being a good neighbor and can’t live with pipes that comply with FMV standards maybe you should re-evaluate why you ride.