One of his earlier tweets that led to this article suggests it's not just backed up at his home: “I should blog about Instapaper's backup setup sometime. It's

One of his earlier tweets that led to this article suggests it's not just backed up at his home: “I should blog about Instapaper's backup setup sometime. It's pretty extensive. A lot of places would need to burn down to lose your data.” Maybe he just likes having a complete copy of the production data on his local development instance? Great for local data ming too.