I'm very irritated by all these different phases in all the new cataclysm zones. Because the zones changes depending on which quests you've completed different parts are in different phases and follow is broken every time those borders are crossed. Sure Jamba warns when it happens but it is still very irritating.

Also it complicate things a lot when wanting to help a friend who hasn't done all the exact same quests yet.

And also regardless of being a boxer or a solo player I don't like the fact that Blizzard made the story/quests so linear like this. Sure the story is great but the way they've made it now limits the player.
A mmorpg should in my opinion be an open free game world where people can do whatever they want. Now you are being forced to play certain quests with all your chars because if you don't, not all options or npcs in that zone will be unlocked. This is very bad in my opinion, this behavior is used in solo play rpgs and do not belong in an open world mmorpg like WoW...

What do you think?