Nobody knows the reason but its very much clear that BOOM is not going to take any boom in upward direction, its price is going only down. May be it goes up if suply of BOOM tokens goes down but it will take time.
you are right there is no point in buying BOOM for short term investment. its a coin for long term investment, those who can wait to get profit should only buy it. BTC is going down so its better to be careful