So for sound technical reasons, I would like to do something that's effectively soft-deleting every post by a particular user, but easily reversed. Like, make it so that admins can see their posts, but no one else can, until a thing gets resolved some other way. And I am not sure how to accomplish this. I don't want to permanently delete the posts, I just want them to be unfindable. Also the user, preferably. Is this a thing that I can do with a ban? With something other than a ban? I note there's a "Hidden" user group but I don't have any clue what that does.