That number varies from one user to another depending on the frequency of their visits to the forum. The number (227) you saw earlier today, are the number of postings that you
haven't read, not necessarily the number of posts that have been made since your last visit. You can easily zero out that number (for the current session) by clicking on "Quick Links" at the top right of this page, then on the pull down menu, select "Mark Forums Read", and that number will drop to zero.
If you actually clicked on the "unread posts" link, another window would open showing all the posts that you haven't read (opened).
Ps: I am the one who moved this thread from the pipe organ forum into this forum area.