Thank you for explaining what you mean. I understand that it has always been possible (in all versions of Joomla) to create custom Joomla user profile fields. To answer your original question, as far as Kunena is concerned, you can change some data (e.g. username, password, time zone) but you cannot cannot update custom Joomla user information without changing the Kunena user profile editor. It is beyond the scope of this forum to go into details about how to change the Kunena user profile editor source code to handle hypothetically possible extensions to Joomla core user data as the result of writing your own plugin that extends that data.
Unfortunately I don't want a google+1 button - I want to enable rel="author" on a profile. I'm at the point where i'm looking at community builder and jomsocial as alternatives because I can't find the answer to modifying the kunena profile.
If anyone can let me know where to edit a template for the profile - specifically the social buttons. I would very much appreciate it.