You mean the ability to bring fiat money to the Steem blockchain and convert it to STEEM and / or SBD? And yes, if we can have some platform like "internal banking system" on Steem, it would be great. But then again it won't be no different than another cryptocurrency exchanges that have already been there today. Only, it will be so much easier for us to convert Fiat to Steem currencies and have them directly sent into our Steem Wallet. Really cool idea.