Some Quest items for warlock quest havent been droping where there suposed to. such as:
Moldy Tome id #6931
Tattered Manuscript id #6997
Infernal Orb id #7291

are some of the quest i have found so far that dont work for warlocks

if you go to booty bay, theyre at a vendor

-- to get to booty bay, type .warp rat (this will take you to ratchet), walk wodn the dock and ull see a guy that when you talk to him offers to transport you to Booty Bay. from here you will end up where the boat would normally drop you off, the vendor is to your left (goblin with wings) use ur hearth to get out, or just warp back to stormwind (.warp sto *the warp function can only be used once every 5 mins*)

As u can see the items i posted about are not in the vendors in booty bay i have been there and there not there. so pleese check ur facts befor replying....