Thats called afking.I have played since the eu release in 2005, and raided hardcore in vanilla and BC and that's my list( From best to worst ):
1. MOP - Hands down the best expansion to date , even if its not done yet , its still over beats every other. This is the only time in the game when I can log in the morning and play all day and still don't even scratch the surface of the things I can do, absolutely brilliant.