Uhh.... my weekend group rides dont even always brake up at red lights. Its even harder to get everyone in such a large group to do so.
I was always interested if people in CM were looking just to back up traffic, just have everyone follow the law. Single file, stop at all red lights/signs. With 300-500 people downtown, you could basically make it so no car can move for a dozen city blocks.
And Im sad to hear you dont do any CM rides out of fear for assault from the homeless or whomever. Isnt that kind of part of the purpose?