This does seem like a nonsensical allocation.

Not to knock nostrexplained because the art is quite nice, but I don’t understand the point of the metaphors. A floppy disk? Networking has been explained with mail analogies for decades because they just make sense.

Relays are just a post office. Except when you check your PO Box, you can only take a picture of your mail while at the post office. You can’t take any of it home with you.

But you could run your own personal post office if you want to own your mail.