This came up in a thread under the end-of-road piece about Trex.
I said yes, of course. I would love to see an intermediate app that breaks up an OPML file into a folder structure of markdown files.
Or even better if Steve's app understood OPML and could generate the site directly from OPML. This was one of the nice simplifications in Trex. It makes editing a site in an outliner work. And if you add support for a domain attribute, all of a sudden you can manage many sites from a single outline. That turns out to be a pretty big deal. Fargo is totally ready for it, because it was set up to work with Trex.
I think this is a very interesting direction.