Good shot, really impressive.

Privileged containers should be avoided whenever possible. But sometimes it is necessary if you run a low level app like k8s or kubevirt.
They require privileged containers to manage the resources.

Example:
mount /dev/sda1 /mnt/hostfs.

If the container also runs with --pid host, you can directly switch to the host namespace which is the same as directly accessing the host.

Example:
nsenter --target 1 --mount --uts --ipc --net --pid -- bash.

This means the socket can be used to start a privileged container that ultimately gives root privileges on the host

Usually mounted docker sockets are found in corporate CI environments to run build jobs.

Yes, it also works with binary data.

But you have to make it executable again (in case of a program) after it was received.

You can just try to buy it on GoDaddy's website, normally it will show you that the domain is taken and an estimated price for brokerage services.

You can try GoDaddy. They usually offer broker services for such cases.
But depending on the domain it can become very fast very expensive.
But u can take a look if they offer it for the domain u want.
If not, your only option is to whois lookup the data and contact the registrar.

😊 only to ensure u r legit...