nixos-generate-config: rewrite stateVersion comment again

Hopefully this version is clearer. Also tried to make it less technical.

nixos/modules/installer/tools/tools.nix

@@ -224,12 +224,22 @@ in
         # accidentally delete configuration.nix.
         # system.copySystemConfiguration = true;
 
-        # This value determines the NixOS release from which the default
-        # settings for stateful data, like file locations and database versions
-        # on your system were taken. It's perfectly fine and recommended to leave
-        # this value at the release version of the first install of this system.
-        # Before changing this value read the documentation for this option
-        # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+        # This option defines the first version of NixOS you have installed on this particular machine,
+        # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+        #
+        # Most users should NEVER change this value after the initial install, for any reason,
+        # even if you've upgraded your system to a new NixOS release.
+        #
+        # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+        # so changing it will NOT upgrade your system.
+        #
+        # This value being lower than the current NixOS release does NOT mean your system is
+        # out of date, out of support, or vulnerable.
+        #
+        # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+        # and migrated your data accordingly.
+        #
+        # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
         system.stateVersion = "${config.system.nixos.release}"; # Did you read the comment?
 
       }