I don't know why some people are resisting regulation. I think regulation is almost inevitable. Bitcoin has gained value and we can buy things with it. Bitcoin is not digital coupons any more and millions worth of bitcoin are trades every day and can be transmitted across the world. Regulated exchanges are important to bring bitcoin mainstream. The more regulated exchanges around the world the better.
It is inevitable. I think some people just don't understand it and therefor fear it and others are just libertarians or anarchists who want the governments to stay out of it. Personally if we want bitcoin to be legally useable as a currency then regulation is going to come whether people like it or not.