I agree with
Argel that the sooner this is brought to the attention of the Novice the better. Part of getting things on track from the get-go for many new-bies will be reiterating to them the importance of observing the mantra
use strict; use warnings;. It will indeed be worthwhile to show the Novice the distinction between Perl and perl and the contexts using either is advisable as this is the best time to start purging the worldly-dross away from someone who is walking into the Monastery.
While some are strict monks, others have a great amount of zeal and others are sporadic in their responses but we know it is Perl that is pumping in this heart of the community which is called the Monastery out of a religious-like passion for the language, so seeing PERL instead of Perl | perl causes me to flinch but pardon the ignorance of those who do not know as long as they don't know for I am a Perl monk and not a Perlorist.
Excellence is an Endeavor of Persistence.
A Year-Old Monk :D .