To be fair you did ask for coordinates on the hardest peak in the state. Perhaps if you need to be lead to within a few metres of water that isnt the walk for you
What has been going through my mind is the level of detail and its accuracy that is required to correctly get to a certain location via given coordinates.
If you posted coords as 43.2714° S, 146.4756° E and say that was somewhere on Federation or any other similar peak, the high chances are you may well be led off the cliff face altogether. The consequences of lesser number of decimal places or a transcription error in posting doesn't bear thinking about on confined mountain tops.
Now suppose its foggy and hot or dark and you blindly follow the GPS it could well be to your oblivion.
My concern on these sort of places is who vets the accuracy? It could be life or death if you need water, but death may be by means other than dehydration.
I'm not trying to be smart or dramatising, but I spend a reasonable amount of my (paid) time correcting other peoples work that has inherent spatial errors and are thus plain wrong.
Now if you only want coordinates along a well known track in a popular walk along a seaside coast then the consequences are probably not so dramatic.
You may say, "Yeh! Who'd be dumb enough to walk off the edge?"
I guess these things happen. GPS in cars leave them suspended over the end of dead end roads, or in one recent case stuck way out in the middle of a tidal estuary or something like that.
The same sort of people that blindly follow their trusted GPS in the car will also blindly follow their trusted Etrex, Montana etc to wherever it says 'that point' is.
Just something else to throw into the melting pot.
Yes it could be useful if well done , but like Doogs said, this discussion has aroused a few Tasmanians in particular and probably because we live here, we know the conditions and the regulations, which much of is good and there to protect those special places in the best possible way and yet allow us to have the privilege and the benefits that go with that when we access them.