the pump to over $2 sbd back in November 2017 probably is related to the Tether FUD that came out that same timeframe...
also a lot of the steem and sbd pump coincides to Trevon James and Craig Grant dumping bitconnect and buying up steem power and sbd
Interesting theories, the tether fud makes more sense, those guys know better than to invest in something like SBD, right?
right?
tether fud made bring bring up "did you know sbd is supposed to be pegged to a dollar?" "oh really I didnt know"
and those bitconnect guys knew about steem before hand and saw steem as a good place to position their bitconnect gains