Based on your posts here in the thread, I would say you are more of a blog platform than an exchanger. Yes, I know, you are trying to keep the discussion active, that is legitimate.
Could you explain a little about your AML policy?
What happens if you demand KYC from one of your users and stop his order until he does it? What is the next procedure in case he passes KYC, is it guaranteed that the order will be completed?
Or for example, what if the user does not want to give you his personal information and does not want to go through the KYC procedure? In such cases, do you return the coins or keep them?