Canning Stock Route & other water sources

I have just returned from the C.S.R. and was "again" amazed at the amount of people who think they are doing right by the wild animals, by leaving water containers and propping up old parts of the troughs to hold water. Wild animals, in the wild as these are will always find their own water sources, and move with the seasons. By leaving "artificial water sources" some birds etc. come to rely on this. So to all those people (who think that they are doing the right thing) by leaving artificial water sources, have they ever given a thought to who will provide the water in these containers next week?? Wild life will die of thirst if they come to rely on travellers leaving water instead of finding their own.