Yeah congratulations. Alot of people don't take all the advice and just try to half-ass it. Or they want a magic bullet. The magic bullet is
work.
Look at how your total bandwidth usage per pageload went down from nearly 5mb to only just under 700kb.
EDIT: oops I had tested your main page before, not the forums. Here's what you have done for the main page:
http://www.webpagetest.org/result/140827_2J_2YS/
Still, that's half the bandwidth and the load time is cut in half.
You still need to fix item #24 for even better results:
http://www.webpagetest.org/jpeginfo/...nime-logos.jpg