I don't try to read everything.
I open the forum, scroll the subject lines and "open in new window" any posts that catch my interest. If/when I make it to the bottom of the page (or have been away from the forum page more than half an hour or so), I'll refresh. I do that a number of times throughout the day and that lets me catch the most active threads, and everything else is pot luck. As was mentioned earlier, you have to work on developing quick "filtering on the fly" skills. Often times you pretty much already know how a thread is going to play out just from the subject line.
