Re the water thing, while drinking a larger amount of water may not be a panacea, it's certainly not bad for you, and does help with kidney function, bladder function, etc., especially for people who are susceptible to stones.
And there are far, far worse, and far, far stupider (and more expensive!) things people could be doing than drinking water!
Salt as enemy #1 is outdated and old news. Even "hippie" types have acknowledged this for some time (e.g., https://www.peoplespharmacy.com/articles/is-salt-good-or-bad-for-your-health ).
Re the water thing, while drinking a larger amount of water may not be a panacea, it's certainly not bad for you, and does help with kidney function, bladder function, etc., especially for people who are susceptible to stones.
And there are far, far worse, and far, far stupider (and more expensive!) things people could be doing than drinking water!
Over-hydration can cause, wait for it... salt deficiency!