Hello again, we've discussed this previously at https://www.openstreetmap.org/changeset/144773386.

Please see https://wiki.openstreetmap.org/wiki/Why_can't_I_delete_this_trail%3F and https://wiki.openstreetmap.org/wiki/Australian_Tagging_Guidelines/Cycling_and_Foot_Paths#Closed/Illegal_Paths in particular the "Current Guidance" section, which shows how these features can be tagged in OSM.

I don't doubt you at all that the "Parks department" is the only authority that has the right to make trails through National Parks. The same way that it's the OpenStreetMap community that is the only authority that decides what information we map and how we represent it in our database.

In a similar way to the US's Trails Stewardship Initiative https://openstreetmap.us/our-work/trails/ it would be good to have more collaboration between all stakeholders in Australia.

I'm going to revert these changes as they appear to be going against the current guidance, and given your comment "Unauthorised track" it seems there is no dispute that these "Illegal tracks" exist on the ground.
