The screen grab seems to show Sphinn blocking my attempt to submit a Brand Republic story. The story itself is about Sony and Yahoo! teaming up to launch a pan-European travel guide.
So, bug or blocked URL?
Brand Republic does require a log in. It's a free log in and the site does show a few sentences from the story. It could well be that Danny and co don't want subscription required sites to be sphunn (it can be annoying when you click through and hit a barrier page). It could be a bug.
Update: It's a bug. Now reported to Sphinn's bug thread.