http://perl-yarg.blogspot.com/2009/06/darkpan-schmarkpan-sto...
As, to some extent, does a followup from another developer:
http://use.perl.org/~chromatic/journal/39228?from=rss
I suggest an alternative title for this post: "Some Perl Developers Care About Backwards Compatibility (While Some Don't Give A Hoot And Others Just Try To Keep Up With Conflicting Needs)".