Ah yes, this reminds me...
Years ago (before BWTs birth), I requested track notes (particularly directions to the start of the walk) for Nevada Peak from someone who knows the place quite well and the notes came with this disclaimer:
Enjoy. Please don't publish the details, but feel free to give them to people individually who will carefully enjoy the walks. These tracks are not supposed to be advertised. This walk is rated T4 by PWS, and promotion is limited. The details of how to find this walk were originally sent to me kindly by [
name removed] of the Hobart Walking Club, in the knowledge that finding the track is a little tricky.
The mention of PWS T4 prompted me to search for and download that exact same document walkinTas!
I don't mind that people keep information of such tracks on the "low down". It lessens the "damage" by the careless masses and when obtaining "classified information" like this it feels a little bit more special and ensures you've done your research!

The same type of thing happens with mountain bike "secret trails" all over Hobart and surrounds.