It's not a major feature, just one I never noticed before. At the bottom left of each forum page is a box titled "Posting Rules". You can click the button next to its title to toggle it between collapsed and expanded. Most important: If you collapse it, the forum software stores that setting in a cookie so it'll remember to keep it collapsed from now on. That makes your pages a tiny bit smaller, the scrollbar a tiny bit longer, and might even require a tiny bit less rendering as you display each page. Over the years, that could add up to valuable seconds saved!