It might not seem that big an issue, if comments were only posted on recent posts, since I can go back a bit to see if there's anything new, but if someone posts a question on an older post - like someone who posted a question on a 2011 post last week - there is no way for me to know.
So, if you post a question, and wonder why I don't get back to you, that is why. It's 'technical issues'. It is rather frustrating, and I have no idea when it will be fixed.