This is not an userspace page.
@davidep, if you are a mail server manager, would you like to bring to mailbox users data about the available space on the mail server? Or the runtime?
My answer is "no". Default user should access only to pw update page.
Please, consider this hypotetical case.
50-100 workers firm, external workers (salesforce? Technicians? remote workers? who knows ), HR department, an IT guy/gal resident for helpdesk and day-to-day tasks with no experience about server management or Information system deployment. And you are the Sysadmin of nethserver.
Which is deployed as MailServer, Content filtering, VPN endpoint, file server, printer server.
HR should have access to User management page, for add and disable users, change password.
IT guy should have access to Printer management, backup management, users permissions management, VPN status/management, status of the server (dashboard included).
Other users should access to PW page, Mail/cloud suite.
External user should access PW page, Mail/cloud suite, OpenVPN download section.
And it would be nice change dashboard access to the various sections of a delegated panels if a new entry comes to HR, IT or other department, enabling the specific section to access and to interact-to.
It's quite a wish, probably not an easy-to-outcome feature, i know.