I say they're only as dangerous as the guy on them.. except for all the other idiots on the road. You have to pay attention driving a car, you REALLY have to pay attention on a bike. Everybody's blind spot is a concern, green lights don't necessarily mean it's safe, the other drivers don't see you, and white minivans are death waiting to happen. Just ride like everyone is out to kill you and it's fine. Been riding for 30+ years with very few incidents. Lot of guys get in trouble cuz they think they have the same rights as a car. Cost of being wrong sucks..