Very calm in tone. In Zuckerberg's place, I would have been tempted to instead write something like this: "Hi, censorious ninnies. In the 50s you would have been blaming godlessness for hurting children, in the 90s you would have been blaming video games for hurting children, now you blame Facebook. Please take your desire to police content on Facebook even more than we already police it and shove it up your own ass."
I have no love for Facebook, but my problem with it is not that I think they police content too little, it is that I think they police content too much. No, I do not want to police content on Facebook to save children. Similarly, I do not want to ban controversial books, I do not want to ban extreme sports, I do not want to ban fast food, and I do not want to ban many other things that sometimes hurt people. If I have to choose between, on the one hand, Facebook with all of its shadiness and, on the other, puritanical moral busybodies who want to control what people see "for their own good" - well, I choose Facebook.
I have no love for Facebook, but my problem with it is not that I think they police content too little, it is that I think they police content too much. No, I do not want to police content on Facebook to save children. Similarly, I do not want to ban controversial books, I do not want to ban extreme sports, I do not want to ban fast food, and I do not want to ban many other things that sometimes hurt people. If I have to choose between, on the one hand, Facebook with all of its shadiness and, on the other, puritanical moral busybodies who want to control what people see "for their own good" - well, I choose Facebook.