I started playing World of Warcraft one fine day in December of 1998 while I was on vacation. I had no idea what I was getting myself into.
At this point, I have 4 characters at 80, a whole bunch of lower level ones, and have spent more time than I care to think about in game.
One word of warning: I consider myself a fairly knowledgeable player at this point (with the occasional noob moments) but I am not a Raider. Part of me would like to be but making that kind of locked-in commitment is something I am still not ready to do. I have run lots of leveling dungeons and lots of heroics, but when it comes to that last tiny bit of min/max math on which X is better for a certain fight, I am probably the last person you want to take advice from.