I don’t think its unreasonable to point out that it’s a *mailing list*. A firehose of email is generally a sign of good health of a mailing list. Even so, there are mitigations to the firehose effect, including, but not limited to digests and setting up your client to move mailing list posts directly to a folder (including the trash for threads you don’t want to follow). I don't understand how one can sign up for a mass email discussion forum, and be surprised that it increased the amount of email they receive. It's kind of the point of the medium.
Right you are, Alex.