Having all your eggs in one basket usually ends up with a mess so right on to this buyer of bitcoins.
Except BitFloor still is in debt to the amount of more than twenty thousand bitcoins to its customers following the September security breach.
If an account holder (or a group) were to pursue this debt through the court system they would probably get a judgement and gain access to BitFloor's funds -- and if you have funds (USD or bitcoins) in a Bitfloor account, those are Bitfloor's funds as far as what a judgement against Bitfloor would have access to.