You can choose options to display information about the author into a page.
"Basic User Attributes" means "Nickname" and "Biographical Info" attributes. These attributes are installed by this add-on.
If you'd like to know which attributes are marked as "Public Profile" or "Member List", please visit Dashboard > Members > Attributes.
If you'd like to add link to a author's public profile, please enables public profile on Dashboard > System & Settings > Login & Registration > Public Profiles .