Aye, what we're seeing is a gradual shift (industry-wide) to a more robust aesthetic...
Yes, I can see that. I think that's a tougher shift for me to make. When it comes to a discussion forum, I like functional and organized over aesthetic. Now, it's just my personal preference, but I have time for one example here...
Here's a view of pages at both forums after clicking for New Posts:


I know it makes me an old fogey, but I like the tighter and more organized look of the Rev forum.
I like the tabular look of the topics and the fields for each. I like the background that sets it apart from the page, and clearly separates each topic with a contrasting line. I like the clear orange marker that shows which ones have posts I haven't read yet. I like the compactness that allows more content to be viewed on the page. I like that the hyperlinks are clearly indicated with the traditional underline.
I feel like the new format is trying to look more like a paper document instead of a web page, which can have benefits, but...
I don't like the wasted space where it tells me how many new entries there are. I don't like the amount of white space because it fails to contrast the content with the page background. The stats are combined in one column, but that only increases the vast white space by saving one column. The page is unbalanced with that larger gap. I don't like that the hyperlinks are not instantly visible. I don't have that visual that tells me what I can click on for more information. It's harder to see what has posts I've already read. In the screen cap above, I've already followed the third topic, and the folder icon is very slightly faded, but that's all the indication I have. Also, unless I just haven't found it, there is no "go to first unread post" icon in the new forum when you use the "View New Content" search. There is a "go to last post."
Also, in the old format, there is a dropdown at the bottom of the page of new content that allows you to change the time span on active topics right from there, and that's not available on the new one.
Anyway, that's a few observations of mine on one particular page.