That's pretty stupid, Garrosh is a boring as fuck villain and he's never even made sense as a big bad. He's just a jaggoff hillbilly orc from a dead world. He doesn't even look like his dad (what's the deal with that)? WHO IS THE REAL FATHER OF GARROSH HELLSCREAM? ? ? ?
Carol will probably show up later either as the governor's right hand or the surprise cavalry to save the day from the governor's inevitable return/retribution that Andrea was in the comics.
Area 52 is a great server, tons of people. Nemesis is another Latin server. Something in the water down there just produces absolutely fuck awful players, it's nearly 100%.
If you really want to play just spend $15 and quit in a month after you finish your class story. The F2P is awful as fuck. (The Sub is also awful, the game isn't good. Just play DA:O or Mass Effect instead)
That's still how it is mostly, people will usually say hi if you say hello at the start, after that it's all business. For some reason no one will ever speak/respond in scenarios though (3 man dungeons). It's kind of weird.