A rare gem. Now cue all the people, not having read it, chiming in with comments of the form “What I use is… [something which the RFC recommends against doing]”.
Eg, nothing wrong with naming the webserver simply "web". Particularly in modern times where it's going to be a VM/container, and never do anything else.
Also nothing wrong with naming your laptop after yourself. Laptops weren't much of a thing in 1990, these days everyone at my company has their own. And seeing a login or packets on tcpdump from "bob.example.com" is very much helpful.
