In my case... I started playing since Cat. and went straight into PvP, made toons in Mal'ganis, Sargeras, and Thunderlord... and all i did was PvP. Got bored and decided that I wanted to give PvE a try. As you can imagine... at first i was running in PvP gear in dungeons and well I learned the hard way =P and still learning. Yes, picking Dentarg was random... I saw medium population and thought that it would be full of noobs but as it turns out there are some really hardcore PvE going on here.
Im just curious to see if there are others with a similar experience as me.