Last time I discussed this issue I requested that an "illegal track" designation should be created that would not show them unless in edit mode and would not allow them to be re-instated without the permission of someone representing the Parks department.

One final word.  These areas of bush are regularly burnt to reduce fire risks.  They also close off areas for shooting of feral animals. To do this, Parks must put barriers across all tracks to prevent entry.  These illegal tracks mean that Parks may not be able to fence off all the access points and someone could get killed.