-[[comment|comments]] postings can be checked for spam. Currently,
-detected spam is not saved for human review, it is just rejected.
+[[comment|comments]] postings can be checked for spam. Page edits that
+appear to contain spam will be rejected; comments that look spammy will be
+stored in a queue for moderation by an admin.
+
+To check for and moderate comments, log in to the wiki as an admin,
+go to your Preferences page, and click the "Comment Moderation" button.
+
+The plugin requires the [[!cpan JSON]] perl module.
+The [[!cpan LWPx::ParanoidAgent]] Perl module is recommended,
+although this plugin can also fall back to [[!cpan LWP]].