Each and every page and blog post gives you the option to leave a comment. Well, it does if the space administrator has configured it to, but by default you should be able to comment on any page you can see when you are logged in.
Anonymous users (not logged in) may not be able to comment on some content until logged in. However, some blogs may well be configured to allow Anonymous commenting. You will be notified if this is the case.
To leave a comment on a page or post
- scroll to the bottom of the page or post and locate the Add Comment link, or use the Page/Blog Operations menu to select the Add Comment link.

- The commenting interface is exactly the same as editing a wiki page or blog post. All the same functions are available to you. So, you can add images or other media to your comments.
- Enter your comment, type in the CAPTCHA and click Post when you are ready.
You can also leave a comment as a reply to a previous comment. You will see the option to Reply to this when commenting. We call this a threaded comment.