I’ve changed the blog’s settings regarding comments. I was trying to prevent spam but it looks like the settings I chose prevented people from leaving comments. One person emailed me to ask about this. So, I’m still going to moderate all comments but you don’t need an account on this site or to enter your email address or name. I think my settings were blocking the Jetpack functionality which allows you to comment using your Facebook user id and others. You should be able to enter your comment where it says “Leave a comment” or “Leave a reply” below each post.