These attitudes are driven by entitlement in my opinon. The thought that some spot on a river, the entire river, a lake, a hole, whatever is "yours" and shouldn't be shared due to it only being there for your experience and enjoyment for how it is today. How fascinating!
In short I would reply...Life is not static.
But I'm long winded and opinionated too, so....
Why does one person or group of people have permission to discuss fisheries but others don't get such permission? I've never heard a reason that actually holds water. Usually it's the same old argument...they didn't put in their time, they're blowin up our rock, they are lazy and looking for easy info, or something similar. Pardon my ignorance, but exactly where does one ask for permission to do a powerpoint at a fly show on a particular river or lake?
This argument, and the practice of selective reporting, has been going on for longer than the internet, for instance, if you knew the shop owner you'd get great info and if not you'd get what he has most in stock.

It's true!
For the record, I don't appreciate small places being named either and think it's in the resources' best interest if names of small fisheries are left out of reports and discussions. The known/famous rivers...honestly, there's 50 years of presentations worth on those places already so at this point, like Queen said, nothing really matters.
So when I kid moves to town and starts a new vlog and insta posting your honey hole on a famous river, post some comments with tips and encouragement. Then reach out to them and see if you can help them understand the resource, its' importance, and why not all resources (lakes, rivers, etc.) are equal.
I would say just because they have different tools than we had to build with, doesn't mean they are building anything different. They also might be buiding something better, so have a look and you might learn. Most importantly, if no one teaches them the value of the resource, they might never learn and worse, they might just exploit it...which is our biggest fear!
Btw, I realize there are people creating fake social media information to make names for themselves. What's really disgusting for the sport is to see someone catch a fish or two, put them in a boat live-well, then take pictures from various angles while wearing multiple outfits to make it appear they caught fish on different outings. People who do such should have their licenses revoked. Those fish died, or were likely already dead, and that attitude and approach to the game is the sad side of the "look at me" culture of social media. There are a lot of smart people out there and these people are usually found out eventually.
There's my 50 cents