It's the core of the business. I'm sure we'd all like to have more recent direct quotes, but Zuckerberg is much more careful with his public image than he used to be. We have to infer it from the actions of the company he controls. I see no evidence anything's changed besides the PR.
Back then, it actually was "dumb" to give a random website so much personal information. Facebook had no reputation. Zuck could have stored passwords in plaintext and hacked email addresses and Paypal accounts. Now, we know that Facebook is a legitimate business, so we know they aren't going to do anything too illegal with our data.
