Originally Posted by
moondog
If you or your hosts don't want to deal with self registration, simply stay at an approved hotel for a single night. This will get you registered in the system.
(For me at least) I no longer have skin in that game. But the point was that they're tracking people. And I would not be surprised if they monitor inbound and outbound traffic. It might not be realtime, but it wouldn't be way out there. Booking a throwaway ticket might not necessarily be the best way to do this (now)