As I wrote already on the dev list, I find the forum style a bit problematic.
I can’t speak for other OS/browsers but with Firefox/Linux, the headers are extremely large, while the text of the forum posts themselves are very small.
Also, for my taste the forum view / new posts list is a bit too large to give a good overview.
I would suggest to adjust the style a little bit to make usage of the forums a bit easier. I find the sizes of the default styles (see e.g. openrcforums.com/forum/index.php) very easy to read and to keep an overview.