I just noticed that this "Additional information" menu item is also proposed to non admin users (In the "More" menu associated to the topic they have just posted).
Currently, if the user selects this menu item, the rotating wheel appears and never ends: no additional info displayed.
Maybe this menu item should be hidden for non admins? Or maybe agree to display the additional information, which represents their own user information?
By the way, is the screen resolution correct in those additional informations?
It seems that the width is correct for me, but not the height (always a bit smaller than my screen).