In the initial state of a Hudson Server, the People link does not appear.
One can create jobs, and users, and manage both, and the People link will not appear.
It only appears after a job is triggered by an scm poll.
Instead of the current logic, could a test of:
useSecurity && authorizationStrategy!=null && authorizationStrategy.length>0 || users!=null && users.length>0)
This change would allow for the link to not be shown when there is no security (enable security==false), and no implied users (via scm) exist.
In the meantime, anyone who needs it can just include a link to People in their dashboard customization.