Easy now, my little Vikings. People sometimes post stuff to 313, but CC the guy to which they replied. Then, for one of 3 reasons, Ezmlm bounces the message. But since someone who's on the list did see the post, they reply to the list.
So in that situation, the post never hits the list, but posts that look like replies to messages on the list show up with phantom quotes from the bounced message. As to why some people can reply to a post, but not e-mail directly to the list, I can't think of why that would ever happen. I'm not really a mailing list expert, or an e-mail expert, but I do know there's a thousand ways for e-mail to go awry. I don't have the time or skill set to fix them all. I make it a point to email everyone who bounces a 313 post telling them why it bounced, but I don't do it in real time -- more like once a day, and almost never on weekends.
