Unfortunately, there are plenty of developers (some of them even *good* developers, in other comparable langauges such as Ruby) who, for whatever reason, believe Perl is incomprehensible and obsolete. I'm sure we've heard all the arguments before, and know that there are perfectly good counter arguments, and that none of the arguments really fit in with our own experience anyway.

These developers can also have a big influence on management (or else management doesn't care, and lets their devs deal with that level, resulting in perfectly good systems being rewitten from scratch, or holy wars between different factions of developers).