I don't really have a better suggestion. Ideally, making sure that the feeds would raise some kind of error condition in all feed readers, but I doubt there's s

I don't really have a better suggestion. Ideally, making sure that the feeds would raise some kind of error condition in all feed readers, but I doubt there's something universal like that. Maybe the "still working" message is good enough, it wouldn't bother me too much, personally.