Just wanting to emphasize this, but remember that different people have different goals and different preferences on what is fun.
You could take your time, max out all your professions, and explore the world as you like.
You could be itching for a 40 player raid group and want to be there when they are first forming.
You could be someone who wants to hit max level as fast as possible, get some sweet daggers, then welcome people to places like the Barrens or Stranglethorn Vale…