My impression is that Perl, Ruby, and Lisp all suffer from this issue. Even proponents will say things like "this language is so expressive, I feel so producti

My impression is that Perl, Ruby, and Lisp all suffer from this issue. Even proponents will say things like "this language is so expressive, I feel so productive in it, but people do such idiosyncratic and clever things that it's hard for anyone else but the author to understand". That sort of "solo rockstar" programming culture doesn't really lend itself to large-scale FOSS projects, which need to be inviting to wide participation.