Because of the seized funds, Mtgox is now essentially running a pyramid business. New money coming in is used for paying customers waiting to withdraw.
you do know that mtgox actually makes money with it's trades. it's taken in more money off fees than has been "seized".
it's not like they actually dont make money
edit: sorry about tone seems like you were not trolling -
they made more than the 5million seized this year.
then AGAIN did the US have the right to seize that in the first place..... we will see