The majority of players wants to XP the fastest from 1 to level max. It's cool.
But a minority of us, wants to :
- take time while leveling
- feel the nostalgy of the old zones, instead to have to change zones every 2 hours because XP is too fast
It's the problem : xp is too fast, even without heirlooms.
The solution : An harder mode of difficulty for XP, like raids and dungeons have.
Exemple : When activate the Heroic Leveling Difficulty, a quest that used to give me 14k XP will give me 8,5k. And the damage of all mobs under max level (1-109) will hit +50% harder and they will have +50% more life (as affixs do).
Note: the heirlooms wouldn't works in this Heroic Leveling Difficulty.
What do you think about that ?