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SBD was just listed on korean exchange upbit, I suspect this may have something to do with it.
https://upbit.com/exchange?code=CRIX.UPBIT.KRW-SBD

Interesting point, @slavix

Nice thank you for mentioning this!

While I am shocked too, Steem has so much potential it seemed reasonable a pump could come at any time although I am surprised it came on SBD which also makes sense because there are so few SBD in circulation compared to Steem.