A. Probably me not getting the hang of it just yet, but no matter how many times I use those two menu options they return exactly the same results so appear to be functionally identical. When a thread is viewed to the last post, the thread then drops off both sets of results. Whereas clicking that sub-menu will include a recent thread that you have also recently viewed. I would expect the main "Recent Posts" menu would take you directly to that result (as it does on ARRSE).