I wouldn't worry about short term movements. People panic sell all the time, only to regret it later. If you believe in the currency/product, why would you sell? If you like Steem, and the price drops, it means it is on sale. Ask where you think it will be in 6 months/1 year. These days, it seems like until a crypto currency gets hacked/exploited/has an exchange crash it isn't legitimate. This hack could (and probably will) make overall security way stronger in the long run.