I would love to see that as well on the internal exchange. Even if we could have a few other coins. I would be happy if even just LTC was added. So there was LTC / SBD, LTC / STEEM and STEEM / SBD
I think it gets a lot more complicated with regulations though probably. At that point they would possibly have to have everyone register to be on the safe side for know your customers laws in the United States. I'm not really sure. They probably feel safe with STEEM / SBD because of SBD just being debt on STEEM.