Quest Glitch + Instant Hyper-Spawn Farm, Good XP And Gold (Patreon)

The Revendreth world quest "retaining the court"* allows you to re-animate various "darkwing rebels" with anima containers scattered about the quest area and build a small army.

There are various exploits you can use which make this quest interesting.

1. By setting your raid graphics settings environment detail to 1 and your normal graphics environment detail to 10, then spamming the toggle key you can remove the scenery from your vision and highlight the anima containers-allowing you to find them quickly. You can find out what keybind does this and/or change it with esc-key bindings-toggle graphics (third from bottom on list). 

2. By joining, forming or converting a party to a raid you can retard quest progression and recruit a theoretically infinite number of darkwing rebels-though they have a 5 minute de-spawn timer. This allows you to effectively one-shot mobs.

3. At 44, 45 there is a relatively small area where mobs hyper-spawn, either by the statue or at 45.1, 45.4 up the path. 

50-59 characters using "threads of fate" leveling can access this quest and level quite speedily. The speed varies greatly based on how active the area is. You can also make quite a lot of gold, the raw gold is decent but mobs drop lightless silk (70 gold on my realm) greens which can sell for thousands, and infused rubies which can be used to purchase a pet which sells for 5000+ on the Auction House. (link to pet item https://www.wowhead.com/item=182612/the-counts-pendant )

*In a previous article I mentioned the rebels could be taken through ports, sadly this has been fixed. On the upside Blizzard rarely nerf things like this twice so the method described here should work indefinitely. 

EDIT: I tested this later when there were fewer players around and the mobs at 44,45 were not hyper-spawning, though it was still pretty fast. My recommendation for those that try this would be to mass pull as many mobs in the area when there are few other players,  and focus on the hyper-spawn location when there are many. Thanks to Nicolai for making me aware of this issue.