+1
I too plead for data stinginess. Only disclose data when/where needed. This is the same thinking as a default deny-all rule in firewalls.
For me the ROS version is of no value at login prompt. And MT did not explain why they broadcast ROS version in WiFi beacons
(Removing Mikrotik elements from beacons - #14 by muetzekoeln).
At login prompt it makes much more sense to me, to display given system identity name (/System identity). So you can check if you are logging into the intended system (if you have more than one, that is).