I'll speak up for Perl. I learntbit voluntarily in my own spare time and actually get a lot of delight out of the language. I like that it is very unrestrictive. The sigils make sense when you wrap your mind around them and you miss them in other languages. It is excellent at parsing text. I wrote a static site builder using Perl along with a very rudimentary templating system ( https://soft.thran.uk for the curious)…
That makes collaboration hard. The freedom I have in putting my thoughts into code, uninhibited by syntax, types and conventions makes it nearly impossible for others to understand and modify my work.