Isn't this just speculation? He gave out enough good reasons for his identity to not be known, the biggest is that he works as a professional psychiatrist with clients of wide ranging political stances.
He's also, I suspect (I don't follow his blog), given and written enough to at least earn enough good faith to be taken at his word.
Yes, I give him the benefit of the doubt, but at the time I wrote the comment NYC was barely awake yet and people were already cancelling their subscriptions and calling for the journalist to be fired.
To be honest, I was hoping NYT would have cleared things up by now, but I've been monitoring Twitter and haven't seen anything.
He's also, I suspect (I don't follow his blog), given and written enough to at least earn enough good faith to be taken at his word.