You're a Perl trainer and I think you should know better. Re-inventing wheels is a great way to learn a language. Besides, if no-one reinvented wheels, we would never get better modules. It's not always good to worship a module and never reconsider its entire design.

You misquote me. I have no problem with people reinventing wheels once they've studied prior art. It's the people that don't even take time to see what the similar solutions are that waste both their time, and ours. Both during the creation, then maintaining variants of the same crappy code, instead of collaborating to build something much better on top of the prior discoveries.

-- Randal L. Schwartz, Perl hacker