[arien]

WoW had some glaring bugs when it came out. Of course, the start of the game is always better, because it has received a lot more attention (it's crucial to get players hooked in) and because it has received a lot more testing (how many testers are willing to go all the way to max level? Way less than the ones who just check out the first few). Starcraft II was better in that regard.

But I'm not targeting Blizzard specifically, just MMO companies in general. All the releases from the past few years all went the same way.