@Ernest has pushed an update which allows users to request ownership/moderation of abandoned magazines. Ghost/abandoned magazines were fairly prevalent after the initial wave of hype due to users either squatting magazine names or becoming inactive for other reasons. Now is your chance to get involved, if you were waiting to do so.
To request ownership/moderator privileges, scroll down to where it says “MODERATORS” in the sidebar. There will be an icon of a hand pointing upwards that you can click on, then make the request. Cheers, and thank you for your hard work Ernest, as well as future mods.
An “abandoned” magazine is one where the owner has not logged in for 30 days. You’ll probably know when a magazine/community you’re subscribed to is “abandoned” when applying for ownership of a magazine is enabled.
Source