Not really a suggestion, but that's the best place I could think of...
I like to keep an eye on the forum, looking if there is any new question (except some sections where I am not competent - video, sound, 3D, hardware....) so I refresh the Discourse index page regularly.
But I have to scroll to see if the last sections are updated too.
I thought I could make a better usage of my screen surface (1280x1024, quite standard nowadays).
So I made a Stylish custom style to remove some parts (that doesn't change much), compact other parts, widen the whole. And bingo! I can see the whole list of sections without scrolling.
I thought I could share with you. Here is the style code:
Compact Discourse Page Code:

@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document url("http://processing.org/discourse/yabb2/YaBB.pl") {
/* I reduce headers height and widen the section list table
   to try and display the state of as much sections as possible 
   without scrolling.
 */
/* Widen the display */
#container, #maincontainer { width: 1250px !important; }
/* Don't skip space before the list of board links */
#mainnav_noSub { margin-bottom: 5px !important; }
/* Give less space around the message nb line */
#container .content td[height] { height: 15px !important; }
/* Hide "Processing 1.0" above the section list */
#board_nav { display: none !important; }
/* Reduce the left and right margins of the section list */
#container .content { margin: 0 10px !important; }
/* Second (windowbg) column of the table: the section name and description */
td.windowbg + td.windowbg { width: 64% !important; }
/* The Last Post column */
td.windowbg2 { width: 18% !important; }
/* Hide moderator info (these are always the same... :-P) */
td.windowbg div.small { display: none !important; }
} 

I think you can use this code with other browsers than Firefox, as long as they accept user styles (hey, even IE can do that, I think!).