Maybe it is now again in game but here we see disadvantages of our system. One stock exchange has problem and BTC dive down. There should be some regulations. Now what? They will work like nothing happend?
Only a newbie to BTC so I'm sure someone will correct me if I'm wrong here,
but one problem I find is that there isn't one solid BTC price per currency (ie USD,EUR,GBP etc). The BTC "price" is essentially exclusive to the exchange that lists it. A 50% sway recently due to MTGOX is just ridiculous.
The community would be better nominating a reliable and neutral body to keep tabs on factors and nominate a price. Shit like this just wouldn't happen then.
I'm sure there's a reason why this hasn't happened if I can think of it off the top of my head, hope someone can explain.