Here is my site. According to the WordPress codex, my comments feed should be http://oldmankit.com/comments/feed/. Indeed, every post has that link in its header. However, it's broken. If you click on that link, you'll see that loading it returns a completely blank page.
My first question is, can anyone help me work out why it's broken?
Second, is there a good reason to keep the comments feed? Obviously the posts feed is important for a blog, but a comments feed?