Another reason for this is that Council might be going through the rosters and clearing out those members who have been inactive for a long while. They're not necessarily out of the clan, just inactive from it, and the Rosters are mainly there to show who's a part of KR and currently active with it. So, this might just be one of the Council's many inactive sweeps.
I can confirm there was a roster sweep and the players whom we haven't seen in a while are contacted to see if they are still about. If they don't back to us we assume they aren't, and remove them from the active roster. They can always have themselves reactivated when they come back to play.
