did you try send a msg from your email address (which is subscribed) todebian-user-request@lists.debian.org
with only the subject: unsubscribe ? Henderson, TL Todd wrote:
I have been trying to unsubscribe for a week and I've emailed the listmaster@lists.debian.org and still haven't gotten a response. Any suggestions?
--To UNSUBSCRIBE, email to debian-user-request@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org