Ok, I read the forum too much probably but I have found ways to streamline it so I waste less time.
First I use the "whats new" feature. As I scroll through the list I find threads that appear to be interesting. If you click the blue circle next to the thread title then it opens the thread to the first unread post saving you time scrolling through the old posts. I use firefox which is a great browser and supports tabbed browsing. By using the right click ---->"open in new tab" feature I can open multiple interesting threads in new tabs while still viewing the whats new list. Doing this allows me to not waste time waiting for threads to load then having to reload the whats new page to find a new thread.
Another neat trick if you are using a wheel mouse is to hover over the blue circle and push down on the wheel (clickable wheel mouse required). This will auto-magically open the link in a new tab. Doing this I can quickly scan the list and open 5 or 6 threads with new posts at a time then by the time I am done scanning the list all the threads are open and ready to read.
I am sure there are other tricks to get the most out of the time people spend on the forum so if you have one then post it up here!