XF 2.0 We can Remove Show Avatar, Userinfo Overlay and Thumbnail to Guests

[Maestro2k5]

Hello,

How can I hide the thumbnails in the theme for guests, the overlay with the user info also and the guests only see a standard avatar?

 

[Hausmeista]

https://xenforo.com/community/resources/conditional-statements.1604/

The syntax should fit either directly or in a slightly modified form also for XenForo 2.
I find it very important for privacy that guests can not see user information.