So Brian fixed (I think) the unsubscribe problem. It's not on the FAQ anywhere, but 313 is currently configured to reject multipart-mime and html e-mail. So you have to tell your e-mail client to send message Plain-Text, or they get bounced. They bounce to the admin, not back to you, so you end up thinking your message went to a black hole, and have no idea what's up.
I found this out the hard way -- at some point I binked the wrong thinger in GMail, and for a month, none of my posts went through, and no idea why.
