Prior to last week (I think) the latest replies to a post were always shown. Then you had to click on a show more link to see the older comments. This has now changed so that I have to click to see the newest comments.
My guess is that this is related to the default order changing to the newest comments on top. as well as new replies getting sent to the top of the list. None of these changes are making any sense to me. It's pretty frustrating.