I agree - not a CB Problem, but there are too few features to have realy privacy options for members (they should be able to decide what other members see ant what not).
My CB Tab Access manager is powerful but it dosen`t help me for some missing features.
Sample:
There is no existing Extension which allows users to have privacy folders for files/sharing.
The only ext. I found is "Briefcase Factory" (48 EUR !!) - i think that Extension could do the things I await from a private user folder with right management.
Some Plugins are available, too like guestbook, user photogalerie.
But I´m still missing a user blog plugin.
Perhaps the development should be more concentrate to make CB Builder more flexible in User-Plugins (not using Components which are to see for everyone else, too who has the same rights than the owner)
The Main problem seems to be, that most components have only a Joomla rights management which is not enough to make realy privacy for users using some extra right management tools.
If it is a relay useful feature to have a Profile-Tab which shows all Forum-Entries, Blog-Entries, Photo-Galerie.... of a user when you can search them in the main component frontpage, too.....???