We are talking about the quests that give out lots of XP and Au, right?
On the plus side, you can level through the BG's quickly.
On the minus side, who the hell needs lots of Au at 30+?
On the plus side for other BG players, it gives them more people to farm.
On balance, I expect it would annoy the people doing the quests enough that they'd give it up as a bad idea, after they've been killed a dozen or so times...
So no....
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Angharad Macsen, Legendary Smith
Alfwyn MacLlyr, LGM everything
Jaelithe Tregarthe, LGM everything
Elfwine Llyrsdottir LGM SC, WC, Fletcher, Siege