Jason Kincaid:

When asked about the site’s privacy changes, Zuckerberg wasn’t exactly forthcoming. Many tweets, and the official live coverage of the event, noted that Zuckerberg dodged some questions about privacy, resorting to talk about encouraging serendipity through openness and well-worn anecdotes detailing why sharing is important. Zuckerberg also brought up Facebook’s oft-repeated stat that over 50% of users have adjusted their privacy settings, citing it as evidence that users know what they’re doing (this doesn’t convince me in the slightest — that means nearly 250 million people haven’t touched them).

As to be expected.