Why do you do it?
Activision or blizzard or whatever has been doing this for 3-4 expansions now, making people test their game for free when QA is a highly paid job around the world ( well maybe not that much but it's still paid ) . Why are you people doing it for free instead of just letting them hire an actual QA team and stop releasing bullshit untested games ?
Is it that fun to play a bugged game just to see a new spell or class or whatever?
Also doesnt it ruin the new experience for you when it actually launches?