User blog comment:DaNASCAT/Update Your CSS and JavaScript To Speed Up Your Wiki/@comment-3508190-20120823051332/@comment-4674838-20120823064526

Alright, so the only thing that's truly special is the URL itself, and the  pretty much just builds the URL for you. Good to know, as using the URL with @import for CSS is a good ability to have.

I'm really not keen on loading site-wide CSS with JavaScript. User CSS -- sure. But site-wide CSS needs to load, it can't afford to fail when JavaScript fails in my opinion.