Yep. Gox sent out emails to people who used the system a few days before they cut service, but I don't recall any general announcement.
"You are currently making use of a system which will be deprecated on Thu 11 Apr 2013 12:00:00 AM GMT:
Generation of USD and CAD redeemable codes will not be possible due to legal issues"
Mt.Gox is getting ridiculous. I never received an email from them about this.
How can they remove a vital feature of their service and not disclose it to their clients?
First they implement a mandatory requirement of your personal information for using Dwolla and now this.
This is exactly what happens when near-monopolies start getting greedy.