I think there are plenty of grounds on which to criticise the exchanges, but it's important to remember that people have the option of trading Bitcoins over the counter if they don't want to provide personal information or risk their deposits being frozen if they don't provide it. The exchanges don't need to be the be all and end all of the Bitcoin economy.
The thing is, I HAVE provided all the personal information that mtgox requested, and my account is still blocked for withdrawals.
I'm trying to reduce my exposure to mtgox, but they've beat me to the punch.