At a company like Google, it appears that discussion on internal forums is actually an internal cultural virtue. Google's innovation and evolution as a company has probably depended on that very openness that we the general public are getting a peek into through these leaks.
An article I read on Wired showed images of these discussions. Apparently very progressive viewpoints are welcomed on the internal channels there. It would seem that any viewpoints that run counter to that worldview, however, are gradually being eradicated by shaming and firing those with alternative views.
What's unfortunate is that with the actions that have been taken...I think everyone loses. Fuel has only been added to this fire on both sides.