How are you going to run the centralized exchange minus KYC/AML compliance policy. It may look easy to you, but eventually law enforcement authorities are going to catch up with you.
One day and exchange like Binance may block a user's funds and will request for KYC verification before releasing the funds. How will you go about this?
This may seem all viable and cool until there's wide adoption of the exchange. Authorities of different countries from which your users come from might set policies and regulations that would enforce the exchange to use KYC/AML.