[cashewchoo]

Legacy uses and a smattering of personal preference.

Perl was hugely productive in its day, when alternatives were either non-existent or extremely nascent (Python and Ruby) or things like C, C++, Java, or Bash. You can probably imagine how writing Perl was fun for script-y tasks when compared to doing it in those languages. So, it has a large legacy presence and isn't going anywhere.

Plus there's a few people for whom it is muscle memory, and IME muscle memory can easily beat out language niceness/appropriateness for productivity in personal things.

Disclaimer: I was born in the early 90's so I was learning long division during Perl's glory days. My perspective is mostly from working in a large Perl codebase that was born in those years and talking with the people who chose Perl for said codebase.