I haven’t done any quests in the Dread Wastes. Yes, that dark, sha-infested zone back on Pandaria. I only ever went there to hunt rares and get to Heart of Fear. The Dread Wastes were always just a place that I went through to get somewhere else. Dread Wastes (and Townlong Steppes, which I did finish) was optional content, and that’s okay.
Carmelo and I hit level 90 while questing in Kun-Lai Summit. We had done every quest we could find in the Jade Forest, Valley of the Four Winds, and Krasarang Wilds. We had gotten halfway through Kun-Lai when we hit 90. Our gear was in the 430-440 range when we did, and we needed to reach 450 to do heroic dungeons. So we started earning reputation for the Golden Lotus, which would unlock Justice Point gear and dailies for the August Celestials and Shado-Pan. We were capped on Justice Points from Cataclysm, so we didn’t need to run any dungeons to earn more. (Though we did run dungeons for gear, most of which was disenchanted.) We had collected several stacks of Windwool Cloth from our journey, which Carmelo crafted into cloth gear for us.
We were doing dailies, running dungeons, running scenarios, and occasionally farming materials while waiting for a queue. Don’t get me wrong, we didn’t like being forced to do Golden Lotus dailies every day before we could do other stuff, but at least there were dailies to do.
Warlords of Draenor is a different beast altogether.