Yes. UDP NAT is done using timeouts due to not having a standardized connection setup/teardown sequence. UDP is used by many consumer-level applications (onlin

Yes. UDP NAT is done using timeouts due to not having a standardized connection setup/teardown sequence. UDP is used by many consumer-level applications (online gaming including on consoles, VoIP, video chat like Skype, etc.) so the lack of UDP NAT would easily be noticed by many normal users.