Just nitpicking here but:
It would be nice if when you clicked on an external link in one of the posts if it would just open a new tab in the browser, rather than redirect away from the beta forum. I know you can ctrl + click or right click/open in new tab, but pretty much every other forum I'm on has that built in, so I always forget when I'm on here. And not sure if it is different for different browsers but I am on Chrome if that makes any difference.
That is all