What you'll find here is a general consesus of where we live and the laws we are required to abide by. For those members that live in states that require helmets are certaintly going to be pro helmet laws because they know no other way. For those that live in states the don't require them, the census may definitely lean toward not.
I've stated this everytime this topic has come up, Generally speaking, bikers in Ohio DO NOT wear helmets. I'll be going to a bike night tonight and I'll bet almost 2/3 are not wearing a lid. Here's the deal though, we as humans are creatures of habits, and some of them are bad ones, but when you're brought up in a manner/state where helmets are not required, and you've seen since being a little kid no helmets, that becomes your idea, your image of motorcycling.
I've been riding for 13 years, 4 bikes, 2 accidents, 1 knee injury, NO helmet. I've become so accustomed to not wearing a helmet that I'm actually uncomfortable on the bike and my surrounding when I have one on. Every time I climb on a bike I know the risk involved, and choose to make those risks in enjoyment of my hobby. There's no sure fire way of surviving a bike accident besides staying of the bike to start with. I understand that it's possible to reduce the possible risk with proper gear, but many a great rider have perished with all the right gear.
So I'm against a helmet law in the same manner that I'm against mandatory seatbelt laws. I don't argue that seatbelts have saved lives, but they've taken lives too. I'm just not pro government telling me how I should live my life.
Just my .02