So if Kim Schmitz wanted to hide his money in the BitCoin network, he would have wired $170 million to Mt. Gox?
I do believe that that would have been noticed by at least the speculators.
The problem is that investors in bitcoins are all small fries, and to buy or sell with this much fiat would swing the market into insanity.
The complete value of BitCoins at this moment is something 40-50 million US$ (8m BTC x US$ 5-6). It wouldn't swing the market into insanity, it's simply impossible, and frankly quit stupid, to try hiding such an amount of money in BitCoins. And what use would it be if one person owns them all?
There are enough solutions readily available for people like him, you just needs to speak to your favorite Swiss bank or send an email to the British Virgin Islands.
If it wouldn't be the for the support of BTC I wouldn't even put a small fractions of my savings into BTC. If the shit hits the fan, I'd like to have something I can use to buy what I have to buy. We are not there yet IMHO.