It contains the comments on the blog posts of your store.
It stores the name of the user who is commenting on the blog post.
It stores the email id of the user who is commenting on the blog post.
It store the comment that the user has made on the blog post.
Enabling the flag makes the comment publish on the storefront. By default, value of the flag's is "0".
It stores the reply of the comment added by admin.
It stores the id of the blog on which the comment is added.