Trading anything is dangerous whether you short or long unless you just wanna buy and hold forever but most people just wanna buy so they can sell higher and make some money along the way. At the end of the day, it doesn't really matter if you long or short as long as the markets move in your favor. From my experience though I've learned to be fearful when others are greedy and greedy when others are fearful. Right now there's a lot of greed when it comes to Bitcoin. Everyone has all of a sudden become fearless lol.