Wall is a linguist, which influenced several of his design choices. You have a wide variety of expressing what you want in perl, just as with natural languages - some ways are maybe a bit harder to read for newcomers, while others are not worse than something like python. Typically you’d have coding guides for projects.

I did a webchat in perl in the 90s, and eventually rewrote it in php3 - php was easier to manage properly isolated between users than perl via the CGI interface, so it became popular with hosters very quickly. I went back to doing all my web scripting in perl once I started hosting my own servers,though.