I'm not real sure why anyone would click on "Show unread posts since your last visit" since that generates a list of all posts from all gates without any indication of the gates within which individual posts appeared. I am not interested in all gates, nor in all posts in a given gate. Instead, I look at the two sheets of paper in the column at the left of the gate titles in which I am interested to see if they are highlighted, showing that there are new posts in those gates. If so, I open a gate and look at thread titles and only open the ones in which I am interested. That means I am only looking at a few titles in a given gate instead of looking through a rather large list of titles to try to find ones of interest. That seems more efficient, particularly when the list is likely to be more than one page long and one may encounter problems as described by the OP. Am I wrong?
A couple differences here:The ones on Page 2 are all different than any on Page 1.And by actual count, I have 25 threads listed on a page.