Since Cataclysm has been out for 40 minutes already, I believe it is time for a thread to share our worst experiences with Cataclysm.
I've just been standing in the queue for Cataclysm for about 30 minutes, but weren't able to buy the game because I had too little money on my Visa. I needed about 2 euro more to buy the game, and I can't buy it online.