New Posts-No New Posts

What does that mean? I am sure it is simple, but I am confused.

I am talking about the icon next to all the posts.

Thank You in advance.

[moderating]
I moved this thread to “About This Message Board” since the question is … well … about this message board.
[/moderating]

If I understand your question correctly, the icon indicates whether new posts have been made to a thread since the last time you looked at it.