The "edit user profile" page of my WP site has few fields like Facebook, Twitter, Jabber, AIM, etc. I think these were added by a theme we used previously. We have deleted the theme since but these fields are still there.
I would like to use these fields and incorporate them in my theme's php files to set up Facebook follow, Twitter follow and an "email user" link in every user's bio.
While I'm aware about editing the theme files and where the code should go to produce the desired the result, what I need some help with is this:
*Is it possible for a deleted theme's meta fields to remain intact despite the deletion?
*Where is the information of these fields stored in the database, how to add more fields like this in the edit profile page and how can I retrieve and use the info stored in these themes in my theme files?
*Lastly, the email of the user is already in the database and I know how to output it in the bio. But in some cases, the user may not like the idea of having a "email user" link in his/her bio. Is it possible to integrate a checkbox on the "edit user profile" page where the user can control if the link shows up or not?