Getsocio provides you with 2 options to get a discussion section for your deals - built-in comments or Facebook Comments.
Selecting between the two is a double-edged sword. While Facebook Comments might have their geo-targeting and marketing benefits, built-in comments are more user friendly. Simple as pie, if a user happens to have no Facebook account, there is no way for them to leave a comment on your deal. Users might find it annoying that they will need to sign up for Facebook or write an email to you to ask their question or leave feedback on a deal.
To enable built-in Discussion section, go to Settings page of Admin section, click on User Experience tab and put the Comments toggle on.
Then "Discuss the deal" box will appear on top of the side deals, with a separate page opening up after "more" or "Join the discussion" links are clicked.