It is very tedious to get from a users homepage to the administration screen of that user (e.g. when I want to delete him, or change permissions). There should be a simple link on the user home page ("Administrate this user") which takes you from the view page (http://confluence.atlassian.com/display/~ultramonline) to the admin action (http://confluence.atlassian.com/admin/users/viewuser.action?username=ultramonline)