Originally Posted by
Mercy
The biggest issue with that is with the WotLK talent and spell systems, it's far easier to rip through the content than it was back in Vanilla. For example, a Ret Paladin with a full rotation, including Divine Storm, exists at level 60. This was nothing like the Ret Paladin of Vanilla. It's a lot like this for many other classes, and everyone saw it when Lordaeron was capped at level 60. People were doing the 40-man raids with 20-25 people. The raids that did pull together a full 40 players? Ripped through the content like it was nothing. Similar happened even in the TBC content.
People don't necessarily want a specific expansion. What they want is a specific experience, and the WotLK talents and spell systems take a great deal away from the Vanilla experience.