I was very much surprised to find out this is not a built-in option already! It is a crucial and basic requirement for any blog, what is the use of the comments moderation option if the poster is not notified, you really expect them to find the specific page and come read the answer on their own?! People land to articles from so many channels, from ads, posts, they are often not aware of how to find the same URL, it is really ridiculous, how should we manage and drive communication on a massive level without this feature???