I think it would be very help full if players who have been inactive for long periods of time to be marked in some way on the world player rankings. This would make it much easier to decide who to send invites, or messages to players to join guilds. And make organizing guilds much easier then sending hundreds or even thousands of messages to to players who have not played in months trying to find active players to join your guild. By making recruiting for guilds easier would mean larger and better guilds making the game better for a lot of players. And I don't think players who have not logged on in over a month will care much if that fact is noted. The easiest way to make them would be to simply color code their name, or mark them with a colored dot as with guild members.