I noticed :
during the registration process, I use several drop-down fields and several textbox fields to allow members to fill in information (gender, work, family situation, etc.).
If you want to control the default visibility of each field in the the menu “Profile type / YourProfilType / Privacy” it is impossible. Uou can not find the right fields whose default visibility you want to control.
1) The names are not very clear (there are several dropdown unspecified and several textbox fields unspecified... so Textbox ok, but which parameter and dropdown ok, but which parameter.
2) Generic fields in the "Profile / YourProfilType / Privacy" menu do not target a specific field in the registration process (and thus a specific field in the profile).
It will be great to be able to control the default visibility of each field, one by one.