Really good article. I'm a nube to Perlmonks, (but not to Perl) and have already learned a lot without actually posting a question yet. From browsing through the posts I would like to make an observation that may help in answering questions.
Code is a form of communication. Though obfuscation and obscure idioms are easily understood by the Perl interpreter, this is not necessarily true of humans. All good communication should be tailored to it's audience. Making example code clear and concise with a few embedded comments will help make it understandable to a larger audience.