You can manage comments 3 different ways. Your are able to:
select your comments tool
select options from your settings if you have chosen OverBlog’s comment
Changing comments tool
Go toTheme > Configuration, find the Comments section. Then select the comments tool you want.
By default, you’ll use OverBlog tool.
Themes will also offer you to use:
Disqus : you just have to enter your Disqus ID
Facebook : you can even chose the font color in some themes.
Comments review before publishing
Go toSettings > Comment, click “Review before publishing” box.
You’ll then have to valid comments before they are published on your blog.
On Comments > Hidden, you can select as many comments as you want, and then click on “Show/hide” to allow it.
From “Comments”, you can select the comment, and click on “Show/Hide” to hide it. If you click again, it will reverse the action.
Deleting a comment
From “Comments”, select a comment then click on “Delete”. It will be irreversible.
Answering a comment
From your blog, click on “Answer” on the top right of each comment and previous answers to answer directly.