there is an 'insecure' system preference. 

Supposedly this could grant access to staff interface without logging in.

But the feature is broken, if you set 'insecure' to allow then staff interface

becomes unavailable.

So, it's not only dangerous as the syspref legends said, the only way to revert is

altering the system preference in the database.

Do you consider that this feature could be removed, or someone is planning to fix it?