I really like the new look of the site and forum, much more modern and clean, but...
here are couple of my thoughts that could improve the forum experience at least for me personally:
Red rectangle - I find this to be way too large, the thought behind is - I already am aware of the thread name I'm reading on, it is unnecessary to have such a large message repeated over and over especially in bold letters
Green rectangle - something that isn't really necessary (at least for desktop pc browsers) - we already have the area to the left that has the post author name in it, so this is repetetive and redundant IMHO
Yellow rectangle - the separation between the actual post text and the info in "green rectangle" seems to be equal to empty line space in the post text - I find it difficult to distinguish between the post itself and the title (especially in that colored rectangle post where the post contains single lines with empty lines in between), fix could be to move the green rectangle a bit closer to red one, so to increase the space between green and the post, and so that the green-red seem like one whole, rather than separate lines like now, or do something like in my edited post at the bottom of the pic