I agree, like the early webpages that attempted to make everything out of tables.
If you look at the old forums, which were professionally made, the multitude of content is separated by solid borderless rectangles of different shades in the background. This acheives the demarcation of the various forum elements without having a page full of high contrast border lines burning people’s retinas.
The new forums attempted to avoid a lot of high contrast border lines, but they failed to demarcate the content with those discretely shaded borderless rectangles. What we have here is a mess of text barely separated by thin horizontal lines and completely devoid of the warmer orange colors that better help visual comprehension of the UI layout.