This is useful, but while trying out the bulk extinguisher I stumbled across what may be the one case where it could be undesirable: some sites I follow have sw

This is useful, but while trying out the bulk extinguisher I stumbled across what may be the one case where it could be undesirable: some sites I follow have switched domains without warning. This went unnoticed before now because the Feedburner URLs redirected to the new sites, but it's possible that had I been subscribed to the direct feed URLs they would have simply broken.