I think I found two more disabled nodes:
The one at the graveyard next to Kibler and the one in Cyrus’ cave. These have never spawned so far either and I’ve done a lot of rounds.
I’ve been an avid ore farmer and I know all the nodes out of my head, this seems totally as if Blizzard has removed them for good. Which is a really bad idea if true, as the total spawn frequency seems unchanged so it won’t make up for the large % loss in mined ore. Actually it makes the mining profession pretty bad regarding Thorium-mining, as nodes in Silithus are way too annoying to use as an alternative. With the very low Arcane Crystal prices in TBC it feels like a very unrewarding task to try and spot the few veins that are left now, and there is already an unusually bad thorium shortage in our AH where no supply is coming in even during days where demand fore ore usually dips. Blizzard, get your **** together please.
It also seems as if there is now way too much dark crap ore in Burning Steppes compared to Searing Gorge - in the past Burning Steppes had (almost?) exclusively useful ore nodes rather than darkcrap ore.