Comment 8 for bug 418728

IMHO that's slightly worse, but still better than the current message. Also, thanks for reconsidering this.

Alternatively, the existing message plus "You may need to subscribe to the list. You are currently not subscribed." would be okay, or maybe "You are not subscribed to this mailing list." plus the message from comment #5. But neither of those are "great" either. Out of those choices, I'd say go with what you think is best; any are better than the current message. Just trying to think of useful ideas...