Hive fiat value remains relatively the same when BTC gets volatile. So i would not blame BTC for Hive volatility at all. Sometimes players play pump and dump on Hive itself increasing it's Btc and Fiat value altogether. But that does not change the point. As of now Hive has little value apart from speculative, either it is trading actively or hodling it long term expecting appreciation in price, does not make a difference.
The question is, what you can use Hive for? And the answer is "you can currently use Hive for nothing".