From a usability perspective this change is a big step backwards.
On the "All topics" page:
1) I can no longer see relative activity 2) I can no longer jump directly to one of the last pages of a topic 3) Icons are way to small and hard to see 4) Column widths are not sized appropriately - 'Topic' needs to be increased in importance and all other columns should be reduced.
My regular usage of this board has just increased in click and load count massively. Here is my typical visit to the site:
1) Go to the 'All topics' page 2) Quickly scan for topics that have had a lot of responses in the past day or two 3) Look at the page numbers for each of those topics to quickly see what the last page I viewed was. 4) Go to the last page I read comments on to refresh my memory as to the current discussion context and read through all comments to the end of the thread. 5) Repeat until I've gone through all topics of interest
With this new version, I can't do any of this other then go to the all topics page. I have no idea which topics have a lot of responses. I have no idea what page to go to within a topic to get to my last location. I actually have to click into a topic to start flipping pages.
I always hate it when people say what I'm about to say.
I can't see myself visiting the board as often unless these issues are addressed. It just takes too long for me to get to the 'meat' of what I'm looking for now. I don't have that kind of time to waste.