It isnt worth opening some kind of special account and parking money there just to short bit coin, there is stocks that do the same thing on a daily basis.
Yeah i already got screwed by a prop firm supposedly regulated by the SEC, and FINRA, and they walked off with 300k like it was nothing, but im supposed to believe these Bitcoin brokers who have zero regs are trustworthy...... not a chance, thats the funny thing about bitcoin, i would never put money with anyone who actually has access to bitcoin. Think Groucho Marx said it best "I DON'T WANT TO BELONG TO ANY CLUB THAT WILL ACCEPT PEOPLE LIKE ME AS A MEMBER" Thats how i feel about bit coin brokers, lol.