Regarding to Your article: https://news.bitcoin.com/bitcoin-could- ... this-year/
Mostly it is not possible to sell BTCs, that You dont own, BUT if it comes to an open market like the entry in the Japanese FX market it would be very easy for users to sell Bitcoins without owning them.
Could this be only an instrument for special people to destroy BTC? As it happens very often in the FX markets there are people that only search for companies or currencies they are able to destroy and earn many many money from this action.
I am not sure, if my guess is correct. For that reason I am asking here, to find same or other opinions regarding this happening.