I haven't had time to read beyond the first 2 pages, but I do have a moderate concern with how the AFK kicking system will be implemented. Namely will it take into account if you are in a (dungeon/pvp/xxx) queue? As a DPS I get queue times of up to 30 minutes, and if they implement a 15 minute timeout then it could be very dangerous to the playability of the game. Granted right now I am almost never afk, even while in a 30 minute queue I am constantly leveling another class. But as time passes we will all be maxing out the classes we truly care about, and then what do you do while you wait? The two solutions I've come up with are

1) Do not consider afk while in any form of Queue
2) Provide a warning when the user will be logged out in XX ammount of time.

Just some food for thought.