Tim alludes to the fact that the searches don't always appear in chronological order, even when they should.
When this happens, does anyone know what order they are appearing in? It might be helpful to know.
If you can make any real sense of the order in which they appear, I'd love to know. 
For a quick overview of the problem try searching for your own posts here - call up advanced search, enter your username in the 'author' box, select 'Nostalgia Forum' from the menu, select 'results as posts' and check that the 'last update time' default option is selected. Then press the Search button and see what you get.
When I do it I get my last half-dozen or so posts correctly listed in chronological order. Then it appears to have arbitrarily selected a particular thread and displayed all my posts in it (but not in chronological order) before moving on to another thread, listing all my posts, etc, It doesn't do this consistently, however.
if you do this test, make sure you continue at least onto the second page of your post listing to appreciate the full effect. As far as I can tell, this is not related to operating system or browser as many of the other 'upgrade' problems seem to be, as I've now had the same results on two different computers running different versions of Windows, and with various browsers.
It was also noted a while back that some of the older threads now also display their posts non-chronologically when accessed.
Edited by Tim Murray, 06 November 2014 - 15:17.