Worpress will display comments at the bottom of an article. This looks very bloggy. You can edit any post or page and delete comments. However, comments closed can still appear on the page underneath the article.
To remove the comment data from under each article,
1) Find the css class or id that displays the comments data from below the article. 2) Go to style.css and add display:none to css class or id for the author tag. 3) Save file.