user profile information for non-registered users
While some user profiles are public and visible for every visitor, others are visible for registered users who are logged in. If a non-registered user clicks to the profile of a user with a non-public account, a small message in the upper right corner appears "The user has chosen not to share his profile details."
However, this notifaction is barely visible, and one might get the impression, the site doesn't work properly. It would be better to: a) show the notification in the center or in a pop-up window b) Instead of the current message "The user has chosen not to share his profile details." it should also contain the information that you can easily and quickly create your own free profile (with a link to the registration process) in order to access the information.