I did not intend to say that the blog should work simply because we threw it on a large instance, we have been running our site on AWS and have successfully handled much larger load. We never needed to move beyond a larger server for the main site, of course with horizontal scaling. What I meant was, when you are swamped with so many things you don't want to spend too much time on things like maintaining your blog.

You want to focus on the product, fix bugs, look after feature request, produce high quality content. And then your blog crashes and things get derailed.