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)".
I'd characterize these posts as "Last year, Perl developers and users debated the relative merits of backwards compatibility vs. innovation". All of the participants care about backwards compatibility, just to differing degrees. Keep in mind, Perl had just had its first major release in 5 years, and was starting to have more frequent major releases; there's been lots of discussion of how Perl should evolve.
There's big difference: those who care actually develop Perl (like, they maintain the C kernel of the language etc.), and those that don't just use Perl and just make noise and are clueless outsiders looking for attention.
Edit: I don't count as outsiders or anything anybody who is a Perl contributor and has his own opinion! Not everybody is supposed to have same opinion, and even when people do cooperate it's a part of the process! My personal belief is still that Perl 5 aged more gracefully than a lot of projects!
That's... quite a claim. I'm hardly the only contributor to Perl 5 who thinks that the obsession over backwards compatibility with an unknowable and unmeasureable DarkPAN is unhealthy.
nperez (author of the darkpan-schmarkpan post) may not be a contributor to p5p (Perl core language developers' mailing list), but a quick glance at http://search.cpan.org/~nperez/ shows that he's contributed some interesting code to the POE and Moose codebases. I think Rafael was a bit harsh in his "Perl Developers Actively Care..." post when he seemingly dismissed the opinions of anyone who doesn't contribute sufficiently good patches to p5p.
Another long thread discussing the same question: http://use.perl.org/~educated_foo/journal/38525