in theory, it should be a community that caters to your needs i.e. casuals should be in a casual group, and raiders find themselves a raider group.

in reality, if a fc only focuses on the casual things without future plans for at least some engagement with end-game activities, its members will slowly leave because the game is designed with progression in mind, be it in terms of running dungeons, or lvl-ing high lvl crafts. so i guess my take on an 'ideal fc' is one that does not remain idle, where the leaders constantly look at what the members r doing / need to be that one step ahead of everyone else.

re word limit, you could post, and edit over and over again and the limit wont be a problem anymore!