Profit could be made the other way around. If one is allowed to trade on UpBit, they buy on the internal steemit market 1 SBD for 6-7 STEEM, that is somewhere between USD 1-2 and then sell on UpBit for the equivalent of USD 6-7. That is at the moment at least 400-500% profit. Could be more, SBD on UpBit was above USD 11.0 for a few times.
Right?