ill give you 3 reasons for that...
firstly, people were told time and time again to get their coins off Mintpal.. the only people who got caught were people like me who either ignored the warnings or were too slow to react.
secondly, some people are wise enough to know that making accusations only increases the likelihood that green turn hostile or run off with their coins so they are biting their tongues until the coins are safely back in their wallets.
thirdly.. this is the Karma thread not the mintpal thread.. if you want to see people complaining go to the mintpal and moolah threads and you will see the absolute verbal beatings they are getting right now from disgruntled investors and users.
I couldn't agree more... many crypto related businesses have opted to refuse US customers because of this. they need not shut down entirely.