I often use my own "threads posted in" link to check for updates on threads have updates but might have fallen off the front page. There seems to be an issue with paging where a thread gets skipped over.
My understanding of how this feature works is that I click the link and I get back 25 threads, sorted descendingly by thread creation time (timestamp on the first post). If i click the "more results" button i get the next 25 in sequence and so on. However it seems like there is a post being skipped between the first and second pages. The last thread (currently) listed on the 1st page has a timestamp of 8/23/2012 11:13 am. The first post on the next page has a timestamp of 8/22/2012 10:14 am. I have posted in
this thread which has a timestamp of 8/23/2012 02:41 am.
That thread was previously at the bottom of my 1st page, but as I had posted in a new (to me) thread last night it's slipped through the cracks. I expect that when I post in another new thread (this one actually) it will reappear at the top of the 2nd page and a different thread will be missing.
edit: verified