Add the ability to create as many color groups and populate them with any user.
Would it be possible to have a few arbitrary group coloring options. Say, I am following a debate or a thread in sports, I would like the option to add certain users to a new color group, and others to another color group. That way all posters on one side of the debate/team will show up a different color then the opposition. It would make it easier to fly through the discussions.
If possible, a way to create as many groups as needed. I'm sure it would get unwieldy if there were too many. Also, the ability to add as many users to each group as desired.