Mindy said that comments on blogs cause concern for newspapers. But she said that doesn’t have to be a concern:

• You can delete any comment — it’s your blog.
• Do not delete a comment only because it disagrees with what you wrote.
• Read comments often.
• Respond often.
• Do not respond to every comment.

I agree with Mindy that WordPress has a great process for screening comments. You, as the blogger, have the ability to read and approve or delete each comment before it’s posted.