Comments
filed under Write page, Sidebar
The comments section is really easy: for each post you get to decide if people can comment (open), if comments are no longer accepted (closed), or if comments simply aren't part of the post (disabled). If you edit a post and select "disable" any comments that post already got will no longer be shown on the blog.
On your Blog settings->Features page you can set the default value for this field.
On your Global settings->Plugins page if you click on "Basic Antispam" you will be able to enable or disable anonymous comments.
Comment feed for this post