I have to review my original thought :
it really depends how you trade it there.
if you can just buy and sell it seems like a CFD and guys will
just buy and sell for profit without adding any value to the community.
if you can withdraw it might make the bitcoin QUITE hard to come buy if
you know what i mean
If you can do margin trading lot of people will be really fucked because
regardless of how expierenced them investors are - this bull here
has horns and this bear here as claws and teeth - and the traps here
are live action ammunition!
As usual - buy on rumors sell on news
and buy bitcoins - never sell