in reply to
Learning the Deeper Secrets of Perl
I play golf. I also wrote a few CPAN modules. Some people write obfu's.
Beyond that, I don't think there's much more without leaving the realm of Perl and entering the realm of computer science. Most of the Perl gurus are really programming gurus that happen to use Perl when you see them. They would be equally guru-ish in pretty much any language out there.
Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.