I think it might have to do with the dynamic.anandtech.com servers. Today, the forums were flat out getting stuck loading. The title bar, and some of the borders would load, but no content. The status bar reported that it was connecting to dynamic2.anandtech.com. I already edited my hosts file some time ago to redirect dynamic.anandtech.com to 127.0.0.1, for exactly this reason - page loading was getting held up. Today, I added dynamic2. Reboot to load the updated hosts file, and the forums immediately load.
I don't know what those "dynamic" servers do; it seems all they've ever done for me is slow down page loads.