AsI know not everyone has a HD widscreen display, I think there are enough people who do and might agree here. Running in 1080p the forums take up only half of my screen. So on one side I get the forum and on the other half plain dirt-gray.
I was thinking that an option could be added in for a widescreen format. Also centering the forum and placing some type of background image would also work. Just a suggestion to possibly make the forum look a little more pleasing to the eye.