On both my laptop and main computer I can't see any of the threads/posts unless I scroll down.
I appreciate the need for raising funds from the advertisers, but I do think that they are getting a little too much prominence, a new visitor to the site first sees a screen full of suppliers rather than educated and erudite posts!
Having the spaces around the boxes is good, but they could be reduced a fraction, without much harm or loss of readability.
I think we have to remember this is a forum not a sales page