Gluon has a single interface to configure node information like location or contact info. This is done in config mode, a distinct operating mode of each node that can only be accessed by pressing button and physically connecting a network cable, while disrupting normal mesh operation at the same time. While this is feasible on planned installation it is less suited for ad-hoc setups of new nodes and while moving nodes.
A core principle of most Gluon-based firmwares is to prevent any accidental access to a node's config during normal operation, except for signed automatic updates. While users are free set a password or add a SSH key, there is no default password. We'd not like to encourage users to set passwords, either. Passwords are likely to be unsafe yet granting full root access to a node so we'd like to keep that attack vector as small as possible.
Most communities would like to have coordinates and contact information set for all nodes. At good map seems to stimulate a communities growth quite a bit a