I guess I like yelling into an empty room
This issue still hasn't been fixed and does not exist on another site that I frequent that uses the same software.
This morning, I noticed something related. When I signed on, under my screen name at the top right, it said I last visited 9 hrs ago, which was correct. I check both New Posts and subscribed threads and both have many since I was on 9 hrs ago.
I begin to read new posts and the Truimph post takes a while to catch up. Recalling there were many more New Posts, I return and there are now only two. I then notice the top right box says that I lasted visited only 36 minutes and is only showing me unread posts since I signed on this time, not the last.
This is still the same session, I never logged out or even left the site.