I don't work for Google. My company has strict policies to discourage employees talking to the public about internal affairs. That was the case with my previous two employers too. Frankly, it makes sense from their POV to not have their dirty laundry made public. And I take similar precautions as a matter of self-preservation anyway. I don't want anything I write here to be used against me either by my current employer or any of my future employers.
Google could be keeping track of which of their internal IPs visited which HN pages, etc.