You must be new here. Back in the day we had MTGOX and that was it. They single handedly caused a number of huge crashes. Slowly but surely more and more exchanges are opening up. This does not happen overnight and we are a much better situation today than we were a few years ago. In any case, short of a completely decentralized exchange system (which isn't even possible today) then there will ALWAYS be market corrections due to exchange issues, all we can do is reduce them by having more exchanges. There is probably an optimal number though because ultimately an exchange is only worthwhile if there is enough volume.

P.S nothing wrong with Bitstamp at this time, this thread is fucking bullshit.