Felix Salmon, writing for Slate:
Today, it seems inevitable not only that advertising will make it onto WhatsApp, but also that the advertising in question will be targeted—which is to say that when you use the app, Facebook will know exactly who you are, where you live, and what kind of products you might be interested in buying. It’s a complete repudiation of WhatsApp’s founding principles, and makes a mockery of its end-to-end encryption.
I strongly believe that Mark just doesn’t give a fuck and will continue to do whatever he wants, just because he can, until someone stops him. He has no moral backbone and is in it for the money. Facebook in its current form is built to not only make its users addicts, but the whole platform can be likened to cancer, growing on the backbone of the internet.