I don't mind the white in the actual forum, though if you want constructive criticism on it here it is: I do think there needs to be more contrast. As I am typing this I see a lot of grey sections, either they need to be darker, or everything that is completely white (the outside edges) should be green.
Also, the white on the homepage is what bugs me. I realize the site is nowhere near finished, but the homepage just looks like it. It looks like it was half done, simply because there is sooo much white. That's ok for the forum, but for the homepage, it just doesn't work. Adding grey for contrast in the text boxes would work nicely, I think.