It used to be that you could set old.reddit.com as the default interface for www.reddit.com URLs, with the new interface still being available at new.reddit.com - is that no longer the case?
You can specify the interface as preferred, if you are logged in to your Reddit account.
However *if you're visiting the site via a specified hostname ("www" or "old", previously "i"), following any arbitrary link from a post, comment, or Wiki page to Reddit will not respect the hostname you'd arrived at that link from.
This to me is absolutely maddening behaviour, as it's now necessary to edit the URL within the browser nav bar. Tedious on desktop, painful on a touchscreen device.
