Agreed. In the HPC and research space large multi user systems are still king. It's quite common for users to stand up their own versions of privileged servic

Agreed. In the HPC and research space large multi user systems are still king. It's quite common for users to stand up their own versions of privileged services on unprivileged ports. Bad actors aside, this prevents users from accidentally mimicking a service that would effectively break shared resources. These are nice guardrails. Security and guardrails should be optional, but it should be opt out, not opt in.