More mote issues going down on the forums. Hildebrand says the recent changes to Mote of Shadow (in which Blizzard removed them from all demons everywhere to just void-based creatures) have caused the droprate to go too low. Removing them from demons wasn't a bad move, because considering the expansion is based on fighting the Burning Crusade, they're everywhere. But void creatures are pretty rare, and while you can pick up tons of motes just killing the Hellfire Peninsula void crowd, you just don't run across them in normal grinding anymore.
Drysc says that even though the drop rate was lowered, something strange has happened-- the Mote of Shadow prices have generally stayed the same. Either someone had a stockpile, or the demand just isn't there. Of course, prices in the AH on every server are different (one server's trash is another server's treasure, so to speak), but Blizzard doesn't see a problem with Mote of Shadow right now-- if anything, they want them rarer.
I think the center of this argument really lies in how crafters are supposed to come across these items-- is farming supposed to be part of the game? I'm a big fan of the "you should get every craft item you need just by sweeping the landscape while you level," but obviously many more players go above and beyond that, and actually spend hours just farming craft items. Should Blizzard tune the drop rates for the farmers, or for the grinders?