Here's a solution that can be used to solve the rank grinding issue. Add scrolls that can be bought from merchants or consumable traders. These scrolls will act like...
Scroll of the Norn [Normal Mode] - You and your party gain 2 reputation points whenever you kill a foe in normal mode. This scroll cannot bring your rank above 8. This scroll does not work with norn bounty or any other reputation scroll active.
Scroll of the Norn [Hard Mode] - You and your party gain 2 reputation points whenever you kill a foe in hard mode. This scroll does not work with norn bounty or any other reputation scroll active.
This way, you can continue doing your missions, quests, and vanquishing normally while still gaining reputation points. This will hopefully eliminate the need for grinding the titles.
Edit to clarify - Ok these are intended to work outside of the norn/whatever area to gain points and those with eotn can gain points. Also, these scrolls shouldn't stack with the bounty of that area, so you wouldn't get double norn points from bounty and scroll, but maybe you can get asura bounty and norn scroll?
S

