This rise of STEEM is impressive, I think it is due to a mixture of 2 factors, first that STEEM was listed in Huobi and second the correction of btc, when bitcoin corrects people tend to take refuge in the few cryptocurrencies that are rising, the last time was DGD, this time it's STEEM.
I hope that this growth is not just a pump and dump and that this explosion brings new active users on the platform. A good year is coming for STEEM. SMT and hiveminds will make its value increase much more.