The horizontal scroll in the SDN forums could be improved a bit. Right now, it is available at the bottom of the frame containing the posts. Say you are reading the first post that extends beyond the width of the screen. Then you have to scroll to the bottom of the screen every time, scroll horizontally and then scroll up again.
May be we should have something similar to the vertical scroll at the bottom of the screen. Or the length could be restricted.
PS: Choice of thread wasn't intentional