"My feet hurt"
"I don't like Turbine"
"This bear is killing me"
These are the final, highest level quests in the game.
What comes after them? Why do you want to reach level cap so quickly just to have nothing to do? Let's not forget that these are "epic" levels which don't actually give your character much power.
If the "MORE XP BYOH DON'T DIE" crowd can't handle not being in ultra-zerg mode at all times then maybe they should just go find a different game.