Update: It's not a Gossamer Forums issue -- please disregard this bug report.
The code and pre tags were being modified by Code Pretty plugin. Anyone who may be experiencing the same thing can uncheck "convert_markup (PRE)" in the Code_Pretty Plugin Hooks settings (in the Plugins menu) and then create markup for perl and nperl until [ RedRum ] has an opportunity to look into it and release version 0.0.3
The code and pre tags were being modified by Code Pretty plugin. Anyone who may be experiencing the same thing can uncheck "convert_markup (PRE)" in the Code_Pretty Plugin Hooks settings (in the Plugins menu) and then create markup for perl and nperl until [ RedRum ] has an opportunity to look into it and release version 0.0.3