Dailies, not repeatable quest, those exist since vanilla. Dailies are in the game since TBC, and for myself, yes I am exalted with all daily factions, as well as with every toon I maintain and progress on max level. My main is exalted with 66 factions, revered with 68 and honored with 69.
The game is a grind from level 1 at day 1 on.. Pick up quest, go collect or kill or both, go back turn in, pick up next. That's the concept from the very first day on.
If one dislikes that concept, I have to ask, why in Gods name do you keep playing the game at all? If I don't like this mechanic, I'd quit long before I would have reached max level with only one toon, let alone an army of toons.
No one forced us in any way, shape or form to create mass amounts of alts. Therefore no one can be blamed if we get overwhelmed with picking them back up, level and progress them through the known grind again, every time a new expansion comes out.