I learned Perl in a day, solved a problem the following day, and have been using and mastering it ever since.
My biggest contribution to Perl has been as a corporate trainer, teaching 3-5 day Perl courses for over 10 years to corporate clients and for open enrollment training providers. I'm hooked on Perl as a language, as a culture, and as a practice. I share all three when I teach.
Althought I do have a CPAN account, I've never used it, and am looking forward to contributing to the code-space (code, tests, documentation) in addition to my previous contributions to the collective mind-space.