Domain naming authorities require identification for the registration of domains. You cannot purchase domains anonymously. You can pay Njalla and they own the domain, and they’ll tell you that you can control it, but you have no rights to it in any kind of dispute.
Yes. This is home-made out-of-band management, like HP’s iLO, Dell’s iDRAC, or generic IPMI. Not only is it a virtual KVM (keyboard/video/mouse), you can pass the host’s power button through this device so you can remotely power on or reset a hung or powered-off system, or mount and boot from a virtual floppy or ISO to completely reinstall the remote system.