Storing location for a preferences file in a standalone stack?

[Warren Samples]

On 09/30/2012 10:35 PM, Andre Garzia wrote:
> Unless the person on the keyboard has an administrator level access or
> password at hand, then you will not be able to write anywhere outside that
> persons folder.Your unpriviledged user can't write to /Library or /System,
> only the super user can.


Does /Users/Shared still exist? Shouldn't that be usable for shared 
preferences? If this still exists and is useable as in the past, a 
single preferences stack in this location could be used to store 
individual personal preferences for multiple users if users are logging 
into the app, using a conditional, and global prefs if needed.

Warren