Oh wow -- it will be interesting to figure out the reason behind all of this volume. I've been looking at STEEM / SBD on coinmarketcap quite a bit, a had been wondering why they seemed to be outperforming the rest of the market so significantly.
I haven't seen any news about some kind of significant development in STEEM that would hint to a widespread adoption -- but one can only hope. I fear that the truth may be one of the first, negative options, you mentioned.
Hope not, time will tell. Still puzzled by how much money is spinning around STEEM/SBD in South Korea, had no idea about that.