OK...I'm lvl23 atm, and I have yet to do any of the RC or WC quests. I haven't resorted to grinding much, just been questing on both continents to get this far.
I ventured into RC earlier today and got confronted by lvl16 elites, which after killing them, I noticed I didn't get any XPs from them.
As I've seen to have passed both of these dungeon lvls, is it essential to do them?