Hi @Jenkler! Long time no see 😁
I don't think we can do this right now, since visibility is handled on the category level.
It could likely be done in a plugin though, to enforce visibility on a per topic level ..
I'd like to re-open this topic. Are there any new features or methods that would enable me to get a notification for all posts. I'd like the ability to moderate every post (to the extent possible).