glad to hear you got it out eventually. yeah, Mark is quite the conundrum. he's purposely evasive, even secretive, but i've never had any money lost or stolen. i've never kept any balances there either for more than a coupla days.
If you, I, and more others had a willingness to leave a relatively permanent balance there, the MtGoxLast price would be supported by far more bids, and there would be faster action to take advantage of big dumps. All of this would be good for BTC as a whole.
Meanwhile, there would be far more asks to keep the temperature from rising too fast and temper the volatility.