It is up for me now, but there are still a lot of bugs. Most likely their database cluster is being partitioned. My newest feed was liked by some of my friends even though I can't see it in my timeline or newsfeeds :)

It is burning my CPU (browser side, not server side) http://i.imgur.com/NgXi4LG.png The author should provide configuration so it does not get data from stats.json every second.