This is a red herring. Any compiler that is implemented in JavaScript can be run both in the browser at run-time (very convenient for developers), or once at deploy-time using one of the many server-side JavaScript platforms (better performance for deployments).
In fact this is exactly what we do with Objective-J, and if Less.js doesn't already then I expect they will soon.
I agree. I'm objecting to the implicit suggestion in the article and more explicitly in comments here that this is in fact fast enough for production. Running it server-side is an excellent solution.
In fact this is exactly what we do with Objective-J, and if Less.js doesn't already then I expect they will soon.