Just add yourself as moderator under Facebook developers comments tool. That's it. You'll start getting notifications of any comments on any of your blog posts.
Shorter way:
- Open this url (am assuming you are signed into Facebook and is administrator of your Facebook app):
https://developers.facebook.com/tools/comments/
- Click on settings
- Add yourself (or any of your friend/employee) as moderator.
Lengthier way:
- Click on 'Moderation Tool' on any of your blogpost's facebook comments.
- You must be on Facebook developers page now. On this page, you must be seeing something like 'your app name' > 'the blogpost title' (from where you clicked moderation tool). Here click on your app name.
- On this new page, click on settings.
- You must be seeing a modal now. Add yourself (or any of your friend) as moderator here.
You must be getting notifications now.