Why on earth are you out of the newbie section? MtGox are manipulative.
They're not manipulative, they just give manipulative people cheap access in behind their trading site.
Since they are still doing most of the volume, it must mean the market decided that was fine.
Ok that was sarcasm, seriously stop being a sheep and use another bloody exchange rather than calling for the government to shut down MtGox. I use cavirtex and haven't had any issues whatsoever with them. Their commissions are a little high, but their engine seems good. Whether it or any other exchange will survive high volume trade load (DDOS) remains to be seen, but we wont find out until people put their bitcoins where their mouth is and go away from Gox.