Where did he answer that? I re-read the post but I don't see anything like what you're referencing.

Voting with your wallet is another possible approach, but that only works if the lost revenue from all the people who care enough to leave can offset the extra profits FB is making by being evil.

FWIW I deactivated my account over a year ago and never looked back, but I did that more out of concern for my own mental health than anything else, and I'm under no illusions that my solitary gesture will make much difference in the grand scheme of things.