The function works on this site. I may have the greatest number of posters on my ignore list of any one. There is one forum that is inhabited by those that are of a single goal and opinion, nothing of value there.
99.5% of the posts in the other forums are visible since nearly 100% of my ignored posters only post in that single forum… which is not an equine related topic. If I were an equine company advertiser I would really have concerns that a significantly high percentage of this site’s traffic has no interest in horses.