As a fellow designer.....
(1) kudos to all the hard work that went into the redesign. Love it or hate it (i'm generally fine with it), it was a lot of work for a lotta folks I'm sure; Keep in mind folks there is a TON of pieces of content to have to account for when redesignign the forums....
and
(2) i'm gonna agree with Celtic on his 2nd point and add 2 of my own.
2. Some semblance of a separation between posts is required, everything is bleeding together right now, I find myself blurring my eyes while reading. The alternating grey-white posting backgrounds on the old forums was effective. You've used the grey background on the "menu" "latest forum topics" sections to break up the space, something is definitely needed. Perhaps repeat the green horizontal bar? Just scroll down a topic and you'll notice that a quote breaks up the page and provides an anchor, this is what is required with each post.
I do think something (space, line, etc.) to separate posts a bit would help. Unlike Celtic I don't mind the lack of color -- esp. b/c there so much (and varied) color via avatars and sigs.
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My 2 feedback pieces:
1. I'd lose the box-shadow on the quotes. It is VERY distracting and adds alot of unnecessary visual clutter IMO (I also think it's a little cheesy and doesn't fit the otherwise clean layout elements of the forum and the larger SB Nation redesign).
I'd replace it with a single pixel stroke:
2. There's a spacing issue that is really distracting --- and i wonder if a relatively easy tweak would improve readability:
(top-to-bottom a,b,c)
a. When you're not logged in, the main post is situated pretty evenly in the post <div>.
b. However when you're logged in -- which I'm guessing most will be there's a large white space between the header and the post (1), where the QUOTE button get's placed. The post also starts to crowd the (now visible "report to moderator" link).
c. I'd suggest (a) reducing the width of the post <div> to be inside the QUOTE button (say 500 px instead of 590) (b) moving the post up a bit to match the look when you're not logged -- the coding on this is a bit more complicated and (c) increasing the bottom margin on that post <div> so that there's a little more space for the eye to rest before the "report to moderator" and "logged" links.
These hastily created screen shots look shrunk. I've also attached them if you need em.
Keep up the great work Jeff, Roy, forum folks, et al.