Since the implementation of raids (and HoT release for that matter) the looking for group “open world content” tab is very cluttered. There are people “LFR (class) (spec)”(Looking For Raid) all over the place, which makes it more difficult for people to find the map they are looking for.
I would advise adding a different tab for raid groups, perhaps separating people looking for a raid and raid groups looking for a specific kind of person to fill out their group.
Additionally, there can be separate tabs for popular maps, like the Silverwastes. (To keep these from looking too empty, you might group them into larger areas, like Magus Falls maps or Maguuma Wastes).
A tab for very temporary things, like holidays or current living story would help as well.
-Xelinne