I absolutely guarantee that, barring hackers succefully gaining access to this site, aboslutely nothing will ever be done with the information you submit here.
Your email address will only be used for automated messages for things as account verification and password resets. Usernames from social networks linked for login and comment purposes will be used as a username for your account here, any and all other information will be discarded. The information provided by you is visible only to me and will never be sold, given away or otherwise made public.
Th only excemption to this are comments you post, these will be public viewable by anyone visiting the page on this site you made the comment on.