Ridden enough in US & Europe to see the effect of noise-makers.
America: "No Motorcycles allowed" - in several resort areas, parkgrounds and communities
Verona: "Motorcycles park inside" when checking in to a hotel right downtown - it was raining and the new Benz convertible could sit outside for all they cared, but our bikes ? - warm & cozy.
It's the difference between motorcycles being a viable part of the transportation mix and a "lifestyle accessory".