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How do I enable or disable the recent visitors feature?
The recent visitors section on your user page logs the last five users who have visited your page.
If you wish to enable or disable this feature you will need to visit your Edit Profile page, once there you will next need to click the User Page Display tab, on this page you will be able to locate the options for turning on/off this feature.
Selecting No will disable it for yourself and other visitors, while selecting Yes (private) will log visitors, but will only be visible to yourself, and Yes (public) will allow all members to see who has been visiting you.