Had the displeasure of attending one a few months back and bailed out quickly because of the ridiculous anti-social behavior of a large majority of the riders; towards cars, pedestrians and even fellow riders. I'm pretty sure that most if not all car occupants which came into contact with the CM mob now have a very negative idea on cyclists.
Some of the behavior witnessed:
* Total lack of following traffic regulations; running red lights, salmoning, riding on sidewalks dodging pedestrians
* Ninja cyclists without lights, reflectors or helmets
* morons showing off by popping wheelies and other stupidities while surrounded by other cyclist
* abusive behavior towards cars even though there was no provocation on their part
In other words a circus taking place on pavement, made me ashamed of being a cyclist.