Because I am running a personal instance of StatusNet, I ran into the issue that Judy had earlier, about how the usernames in replies were linked to the site that generated the feed, rather than where that user lived. I decided to take my own advice, and contacted the plugin developer.
When I woke up the next day I had a reply from evgeni. Sweet! And despite my broken promises, I finally got around to testing it out. Edit: you can test it right now, as well; the git repository is at https://github.com/evgeni/wp-statusnet-widget.
While I think it would be nice to be able to set that option per syndicated service, I wouldn’t want to complicate it anymore; the widget is so simple, it is literally just putting in URLs and it does the rest.
If you are using StatusNet and want to get your updates into WordPress quickly, check this out, it is very dope. Thanks Evgeni!