On by default. Other members can see your name, photo, headline,
location, work, skills, interests, links and the events you've attended. Your email address
and phone number are never shown, whichever way this is set. Turn it off and no other member
can find you, open your profile or message you.
On by default, and only does anything while the switch above is on.
Turn it off and members can still see and follow you, but the Message button disappears from
your profile. Conversations you already have stay in your inbox.