I don't remember much of an objection to CoffeeScript on the grounds that it requires a compilation step. For example, here was my statement advising Discourse

I don't remember much of an objection to CoffeeScript on the grounds that it requires a compilation step. For example, here was my statement advising Discourse to avoid CoffeeScript in 2013: https://meta.discourse.org/t/is-it-better-for-discourse-to-use-javascript-or-coffeescript/3153/19 https://meta.discourse.org/t/is-it-better-for-discourse-to-u...