This is more of a "What if" question, but it has come up before on my forums. What happens if a moderator makes a post in our private moderators-only forum, and inadvertently uses the @ in front of a username of a regular member, turning it into a tag? Does the member get a notice that they've been tagged, then when they try to visit the thread they get a permissions error? Or, another scenario, let's say we have a member who made a troll post, and in that troll post he tagged several people. While the post was in public view, some of the people he tagged logged in and saw it, thus removing the notice, but some others didn't log in and view it. Then, a moderator removes the post to an "undisclosed location" (ie, we have a private sub-forum of our moderators-only section where we remove posts from public view). Do those notices go away because the post was removed to a place where those members have no permissions to view?