In the top nav bar, click on the "Profile" dropdown. It will expand.
Click on the ( Menu) icon on the top right corner of the page. The menu will expand.
Then click on the dropdown that says "My Profile". It will expand.
Then click on Edit Settings in the list of links.
Then click the Hide Profile link in the list of links..
Then click the radio button that says "Hide my profile on the site", and click the "Save Changes" button.