I've been doing some old Heritage quests, mostly for AA, and it kind of bothered me that all these wonderful quests were no longer really useful. People level so fast now that most people aren't going to bother doing them with level appropriate characters. Hell, some of the heritage quests are so long that even if you did do them at the appropriate level, by the time you finish them, the item will be gray. That wasn't the case when the game launched, but is sadly the case now.
This isn't an indictment of increasing the leveling speed. I think that was unavoidable. The alternative was to keep it lengthy, but that makes it harder to attract newer players (who see a vast but entirely empty world since everyone is wherever the newest zone is). It also makes it harder to keep older players since if they tire of their main, they are unlikely to want to level an alt if they know it will be months or years to get back to the level cap where their friends are.
But because of all that, the low level heritage quests rewards go unused. Few people even try the quests until they are trivialized by leveling up, since it's almost impossible to get a full group of people to do them at the appropriate level.
So that's why I wish that the heritage quest rewards would be changed to HEIRLOOM. (For those who don't play EQ2, that is our game's equivalent of Bind-on-Account. It means you can trade the item to another character you own [on the same account] but not to anyone else.) At least, this way, I could trade them to my alts. That's twinking, but I think twinking is fine as long as things don't get too grossly overpowering. In fact, as far as I'm concerned, it's a part of the progression in a game. You level up, you earn your top gear, and you should have the ability to pass some of that on as an *ahem* heirloom to another character you own to help them level up as well.
Sure, that means people might gray out, and therefore trivialize, zones to twink their alts, but so be it. At least the quest lines would be useful to people as something other than an AA grind and the quest rewards will see the light of day.