You can use your knowledge of emacs in other non-emacs contexts as well! Elisp is a reasonably capable, if sprawling, programming language and comes with a lot

You can use your knowledge of emacs in other non-emacs contexts as well! Elisp is a reasonably capable, if sprawling, programming language and comes with a lot of useful text and code munging stuff, as well as with cross-platform networking and filesystem support, and more esoteric stuff like calendar and symbolic/aribtrary precision math. And that's before installing any extra packages. I've written shebang scripts with Emacs (rather than say python or bash) on multiple occasions. Prior to windows growing linux support it probably also used to be one of the easier ways to write some unixy-feeling but cross-platform scripts; you can even craft a "shebang line" that works for both windows and unix. Having said that, due to general eco-systems advances, writing scripts in emacs has probably become less attractive than it used to be.