The properties mentioned in your post is for user community pages. In liferay communities are the core site. each user may have their own community private or public pages.
You already have a default community that ships with the liferay
tomcat bundle. You can have the company pages and anonymous pages there using permissions.
Liferay enables adding permissions based on roles to pages. when you add a page, you can add permissions using the dockbar: Manage>Pages select the page and then select the permissions
When a user is created you can decide to create a community for them, in turn creating a private page and public page. you probably want the private and public pages to have specific content, that is where you will find another property that specifies the portlet and what columns in the layout they are placed in.
To have some users have private pages, and others have public pages, will mean that you have to seperate between users somehow. That will mean that you will have to give different users different roles.
The rest comes down to communities and pages and how you display the pages in a menu in your themes. you can have the user login land you on a specific community page. This will require ext project where you will edit the post login actions and user creation of pages when signing up/logging in. ( search for the class names that are considered post login in portal.properties.)
you should also check the "Settings" in the portal section of the control panel. that will add default associations for the users (roles and communities) when they sign up. With the complex distinctions of users you will definitely need to extend liferay code in an ext project.
Try though, as much as possible to have the pages available as part of the default community and give permissions to it, and make them appear in the navigation menu based on level. It will help
alot.
As for your follow up post, I suggest you'd have the default to enable the creation of the private/public pages. it will be a pain to recreate for existing users, whilst if you create and not make any links in navigation menu or dock bar, it would be much easier.
HTH