The "Note Board" feature does not seem to be work correctly for me. As per the documentation, Note Board is a place where users can post comments which can viewed by other users.
However in my 2010 site, only the user who adds the comment can see it. [i..e If user A adds "post1" to the note board of a page, then the post does not appear for User B. If user A checks, the post is available.]
For tags, it is possible for an user to mark the tag as private. there is no such provision for a note.
View Complete Post