I will make the same note I did last time you posted this: I always thought, that the goal of the game was to have fun, not to reach some specific level.
In Lord of the Rings Online they sell an XP-disabler in the game shop. I, and many others, have found it a very useful purchase since it opens up a bunch of extra possibilities when playing the game. I would be very happy if we could get something like that in AoC.
In particular it lets a group of players go through the game together, doing all group content on-level, without having to worry about anyone starting to outlevel the content. Great for completionists, and for anyone who likes to play with a fixed group but also likes to go off solo occasionaly.