Yes, the top-level domain is still just a domain. I’m not aware of any public Internet services which are reachable from a TLD directly, and it’s strongly discouraged by ICANN, but there isn’t any technical limitation preventing e.g. someone at Verisign from setting up example@com.

My sister has this printed on a t-shirt.

Okay, you can’t just drop that bombshell without elaborating. What sort of bug could exist in a program which contains a single return instruction?!?

Yes, but what if it were a subscription? May I present: /dev/null-as-a-Service.

Would have to be cat /proc/sys/kernel/random/uuid > /dev/null

You can’t pipe to a file, only to programs, and since /dev/null isn’t an executable your command will simply give an error.

To make it more clear, consider using dd, which lets you explicitly specify an input and output file. For example: dd if=/proc/sys/kernel/random/uuid of=/dev/sda1 wait shit that wasn’t the right output oh god oh fu

why did you take a 4chan greentext and reformat it like it’s taken from some kind of corporate slideshow