Sometime recently I was switched to being a no-reply blogger. I'm not quite sure when this happened (although I suspect it was when my google plus profiles were linked to my blog) and I apologize for the inconvenience. I have followed all of the google tutorials for fixing this option and I have not been able to resolve it yet. So, I have posted a help ticket and hope to get it fixed soon. Thank you to everyone who found a way to reply to my comments on their blogs anyway.