I'm not sure if it's the "social" buttons on each forum post, but something within the last few weeks has made the forum really painful to use on Mobile Safari. When going to the latest unread post in a thread, you have to wait about 30 seconds extra for something or other to stop loading over the network (the spinner keeps going, even though the page seems to be fully rendered) and until it does, you cannot scroll up or down. The page just springs back to the anchor on the unread post. Trying to scroll even seems to reset the time it takes for the mystery process to finish. If I'm feeling inspired during the week, I'll run the browser through a proxy to see what seems to be causing it.