Just checked LI - I can manage how somebody will see me if I visited his or her page. I can remain fully anonymous if I want to. So FB or LI do not de-anonymize

Just checked LI - I can manage how somebody will see me if I visited his or her page. I can remain fully anonymous if I want to. So FB or LI do not de-anonymize profile views but users themselvs when they want to. No reason for panic.