Which one exactly do you mean?

This is a kind of advanced way of subscribing to weeklyOSM and you need to use Linux/MacOS for that.

please not forcibly.

I do not think so. Otherwise mailing list moderators might have blocked that account from sending mails to the list. Also, you can filter your mail and directly move weeklyOSM mails to trash if you want. Moreover, if the mailing list is already dead otherwise, why not unsubscribe from the mailing list itself?

I am subscribed to the Bavarian mailing list. And the list is used to e.g. announce the monthly meeting in Munich. So, accouncements are a common use case for a mailing list IMO.

Maybe if you think the other way round, when a new mapper subscribes to the mailing list, at least there is some traffic, which is not that uninteresting.