Now that Twitter auto-shortens URLs (and expands them in the UI), is there really a use left for URL-shorteners? Are there any other major platforms where text length matters?
You don't need to rely on routing through Twitter. Works when Twitter blocked or down. Branding.
Also tracking.
Also you can modify where the link points after distributing it in case you notice a mistake.
and really it both sucks, which is why many print magazines collect an edition's links on a special page like magazinename.com/2014/5.