Not sure if this has been suggested, and if it has, please send me to the post.
Anyway:
I would like it for my users to have a friends list, this way they can allow there friends to access there photos while leaving them hidden from other users.
Chances are this has been submitted, so please send me where i need to go :P
has been discussed before and those functions won't go into the core code. However they are avail as a mod for ~2 years now (modpack: http://forum.coppermine-gallery.net/index.php?board=81.0 )
And don't ask for support on the feature request board