Yes, but--and this makes a big difference--in the old MFI Forums the "Replies" column would show in red parentheses the number of new posts since the thread was last viewed. With this feature one could readily spot what was "new", even if the last month's worth of postings was on display.
Now when I look at a forum and it opens with a month of listings, it is not readily obvious what is new, what I have already read, etc. Either let me easily control the time span of the display, or highlight for me that which is new since my last visit--or both!