I'd be much happier if it only kept records locally, or had the option. As creepy as... every social network has gotten, I want my privacy and anonymity back. As interesting, and potentially useful as this seems, I don't feel comfortable giving every detail of my life to a private third party to store "forever." I don't make committing crimes a habit or anything (copyright infringement not withstanding), but with the US government's position that anything you choose to store with a third party being accessible without a warrant, I'd prefer to store things locally.