When you speak with that person about the website ask them if they can make either a dark mode for the forums or just altogether make it a different color rather than white. As a audio/video engineer I can say that you've probably noticed a lot of websites moving away from white themes or at least if you use google chrome there are extensions now for those websites that allow a darker theme. A lot of times when people come to a page that is all white they don't tend to stick around very long due to eye strain. Might seem really minuscule but it's something that we don't consciously think about but it's there and it's just one tip that I can think of to give about the website. :)