I really enjoy it when the Blizzard staff interacts with the fan base like this. We've even been lucky enough to get whisked away for some special face time. I think it shows that behind the corporate face they have to put on, they're really just people too – and like a joke now and then. I wouldn't recommend doing this however, since you might catch a GM that doesn't think it's funny – but since it worked in this case, it's golden.
Check out after the break for the full screenshots. Pretty funny stuff.