Hello,
I see that some people are still having fun with the Mailman interface trying to unsubscribe people from this list, specifically 91.64.208.89 or ip5b40d059.dynamic.kabel-deutschland.de as they are also known.
Perhaps some actual, reasoned discussion about the challenges raised by recent events related to the FSFE might be preferable to rather clumsy attempts to play with people's mailing list subscriptions.
Paul