Arnt Gulbrandsen wrote:
Examples should be realistic, in the sense that they
remind readers of the real thing. "foo.example" doesn't
strike me as a good example of a fully-qualified domain
name. ("foo.arpa" isn't too good either, now that .arpa
is long forgotten.)
At some point it's a matter of taste, yet another "Alice"
and "Bob" example can be also surreal, if they don't do
anything remotely related to crypto.
Some days ago I counted the foos and bars in RFC 2821:
<http://www.rfc-editor.org/errata_search.php?rfc=3092>
Frank