Yes, normal forums typically have more members than guests. However as this being a Camaro\car forum, a lot of people stumble onto these forums via google & other search engines, ext. Lots like to browse these forums as well as ones who don't bother to register\post.
If any guest is out there reading this I encourage you to register.
This forum has a lot of great and knowledgeable people here. One of the most reliable sites to get up-to-date information concerning the 5th Gen Camaro.