It seems a common practice for bikes to pull up to a light and rev the engines. I don’t see the point. I like my loud pipes, they sound great on the road and offer a small margin of higher safety but I don’t have to rev it up at a light to bring attention, or to keep it running. She will sit there purring all day long without reving it up. We don’t do that in our cars,, so why the bike? And on hot days it will only serve to make your engine run hotter.
On a recent charity ride they even had the loudest bike reving contest. I agree, enjoy the pipes, be heard not obnoxious. :rr