In view of Anet’s plan to make people go out into the world and populate low level areas, i have this suggestion to offer:
Allow the quality of loot to scale with your characters level.
I know that loot in some dynamic events already scales with level. What i am proposing is to apply this on all mobs and events starting on maps lvl 20+.
For example: If a level 80 wants to farm T5-T6 mats, he is able to do it in a level 20 zone since the mobs there will no longer drop T1-T4 crafting mats. The same can also be applied to equipment drops.
The reason why i am suggesting this, is that currently, the only way to farm higher tier items is in the level 75-80 zones. Making it so that higher level players are stuck in those zones and are not interested to go back to lower level zones, making those zones barren.
They can further tweak this by adding an option to turn off the said scaling mechanic if players want to farm lower tier items on their higher level toons.
Comments to this suggestion is welcome! 