So... it turns out I wasn't getting notifications on comments from my blog. I thought something was odd but only now got around to looking into it. I've now installed Disqus, which I've been using on my previous site, and so it should be better now.
If you made a comment on a previous post, I'm so sorry. I was NOT ignoring you! I love comments, and I love to know what my readers think. In fact, that's kind of the whole point of this blog—to have conversations with my readers. So, please, test my new comments add-on and let me know how it works! :)