I'm not saying it can't work, I'm saying it's no one's first choice, even today. It's just extra risk, less usable (10.0.123.234 vs fd00:ec2::1234:5678), extra

I'm not saying it can't work, I'm saying it's no one's first choice, even today. It's just extra risk, less usable (10.0.123.234 vs fd00:ec2::1234:5678), extra hassle (multiple IPs per NIC, extra hoops to access Github, etc).