I appreciate this thoughtful reply. I read it a few times, I think I understand the goal. Basically you're systematically closing off points that leak private information or constitute a security weakness. The IP address and the ports.
For the VPS, in order for that to have no bandwidth loss, does that mean it's only used for domain resolution but clients actually connect directly to your own server? If not and if all data has to pass through a data center, I'd assume that makes service more unreliable?