When browsing after searching or opening a forum, I think it would be helpful to see the original post to the thread. As it's setup the most recent is visible. That's convenient to see if there is a new post, but seeing the original might make it easier to locate an applicable thread. Besides, the notifications let you know if there are any new posts.
it confuses me sometimes. i noticed if i post a comment it does put my comment at the beginning but reverses the order of the comments which is good. I'm only confused when i look at a post i haven't read and it start with the 20 something post and i think I'm reading from the beginning so i just deal with it.