The request info link appears next to members' names when they haven't posted anything on their profiles. When you click request info next to another member's name, you'll get the option to ask them to post profile information. We'll send your request to your friend and then notify you when they've posted.
Note: Request info does not indicate that a profile was made private. Anything you share on your Classmates profile can be seen by other members who visit it (including photos, your story, your location, etc.). There's no way to make your profile private or to require visitors to ask to see your profile information.
If you've already posted information on your own profile, the request info link will no longer appear next to your name on community member lists.