What I have learned...

in Cataclysm so far...

1 - Harrison Jones is AWESOME!
2 - Mount Hyjal has the most interesting story line so far (my favorite zone)
3 - Healing is hard
4 - Pugs suck...again
5 - People don't remember how to use crowd control
6 - My guild is awesome
7 - Blizzard loves pop culture in their game..."Jaws", "Indiana Jones", "Pirates of the Caribbean", "Star Wars"...

That is what I know...how about you?