The Comments tab at the top of a wiki page and the link in the navigation block allow users to see and add comments about the wiki. There is a tab for comments on each wiki page, so comments are usually directly related to a needed or existing change made to that page. Anyone can add a comment for any wiki page. The userID and a time stamp will be visible in the comment block. Instructors and designers can modify or delete the comment. If the user who made the comment did make an actual change to the page, the History tab will keep a record of the previous and current versions of the page and allow for comparisons.
Adding a Comment to a Wiki Activity Page
On the homepage of your course, click the wiki name.
Click the Comments tab.
Click Add comment.
Enter a comment.
Click Save changes.
In the upper left, click your shortened course name just to the right of Dashboard to return to your course site home.