Real blood elves moved to the alliance when they realised they could be blue. The current red ones are phoneys because a dev accidentally spilled coffee on the faction schematics during the making of BC. I know this because the void told me so.
But do they clean alliance sewerage systems? Of course not, because they use magic to port it away. In fact, Orgrimmar is 80% composed of Sin’dorei excrement… So… Okay, I may see the loss there! But trust me, with an alliance sewerage system, you don’t need to worry about asking anybody where it goes. All of that matter is transported directly to the Horde drinking rivers!
Mud huts indeed, with animal carcasses and metal spikes everywhere. At the very least, the High El…ahem…Void Elves deserve the Western part of Silvermoon that those lazy Blood Elves have left in ruins for years. Western Silvermoon for the Quel’dorei!