I've received a response from the list owner and now I'm subscribed. I think this task can now be closed as resolved. I'd like to thank you all for the help. With that being said, I've noticed that the archives of the mailing list are publicly viewable (as of March 2024?), though no messages are shown. I've discovered this when clicking the "Archives" button before being subscribed. This could be a serious security breach. Please mark the list as private, if it isn't already, before closing the task. Thank you in advance.

In T360263#9636070, @Aklapper wrote:

@Elton: Per https://lists.wikimedia.org/postorius/lists/meta-oversight.lists.wikimedia.org/ , have you tried

To contact the list owners, use the following email address: meta-oversight-owner@lists.wikimedia.org

?