I have many of these places and I do not share them, and I do not feel guilty about it at all!
I worked hard to find them. Anyone can do the same. If they don't know how, or are too lazy, then so be it. The land is better off anyway.
I hate it when people post about little used places and then they get invaded. Worse is a trail guide. Absolutely worse is a Backpacker Magazine article. And this is one of the main reasons I quit my subscription years ago.
You mentioned some pretty popular places. I hike some of them, but off the main freeway of people. And it will be 40 years this summer since I last left a boot print on the JMT or Mt Whitney, although I have hiked many places near there.
And now you know how I feel about people who are always asking, "where should I go?"
There is a little known place I haven't been to in over 20 years. I just spent 30 minutes trying to find information about it on the Internet. Good Luck! Only ONE item is posted, other than it was turned into wilderness area in 1992, and the old jeep trails are now off limits. Hallelujah!. I am going there as soon as I get my new McHale pack, for a test run.
Is this a rant? Yep. Now I feel much better.
Roger, Thank you for posting.
And NO, I am not telling anyone where this secret place, except my wife -- in case I don't check in on time.