we had been thinking about it, but with the way the groups are made at the moment it would really not work.
our group system is purely virtual, it means that there is no actual group object, its just that when player says something all players with the same exact group name receives it (so /joingroup random_name_afbkjsd would work too).
this system works quite well, but obviously its not good for more advanced stuff as there is no data attached to the group, e.g. the leader or who would be able to kick.
the solution is what MAF is using, use an obtrusive name that others don't know, and switch upon detection.