- Optionally, moderate before the comment is published.
- Publish the comment.
- Don't publish the comment.
- Moderate after (if) the comment is published.
- Delete the comment.
- Don't delete the comment.
You enable / disable comment moderation, using the Settings - "Posts and comments" wizard. Here, you have a number of settings to consider.
- Show or Hide comments, for the blog. Note that you'll also have settings for each individual post, in the Post Editor "Post Options" section.
- Who can comment? Here you select authentication levels required. This setting has many implications, which result in relevancy regarding spammers, and in security settings needed by your readers, among others.
- Comment Location is another setting which is affected by your readers security settings, and by the status of the post template.
- Comment moderation is where you enable moderation before publishing, and you designate the email address for the moderation required email notifications.
- Comment Notification Email is where you designate the email address for the comment published email notifications.
- Show word verification is where you enable CAPTCHA screening for all non blog members seeking to publish comments.
As a "Grants Tomb" type remark, I will point out that, if there are no unmoderated comments for the blog, and you click on "Comment Moderation", you should expect to see the advice
No Unmoderated Comments Found.This does not indicate a problem, it says simply that there are no unmoderated comments - which means that you are wasting time clicking on "Comment Moderation". If you are deleting a malicious comment, such as hacking or spam content, you'll want to use the "Remove Forever" option, after selecting the trash can. Otherwise, the comment remains there showing the name of the commentor, with a possibly malicious URL linked to the name. Use "Remove Forever", and remove a malicious comment completely.
And finally, if you moderate comments using email, use the right email messages - and use the right links in the comment moderation email.
If you decide to upgrade your blog to use Google Comments, you'll face a whole new series of abilities (and lack of abilities) to moderate comments.