Quote:
Mobs in Silithus drop it a lot, and it's practically always deserted
This.
If you fly in to Cenarion Hold, and then head west out of town, off the right side of the road is a Twilight Hammer encampment. Easy easy mobs to cut down. I went with a mage who was looking to earn rep for the Cenarion Circle to be able to make the Satchel of Cenarius.
The mobs drop texts, 10 texts = 1 turn in = 500 rep. By the time the mage hit revered (a total of about 5 hours cutting through these mobs), she had an imbued netherweave bag (18 slot) full of stacks of runecloth.
Go for it, in all the time we were there we didn't see another soul.