I've been browsing the lfg forum for a couple days and notice myself spending a lot of time looking for the threads I haven't actually seen. Some threads from a few days ago continue to get replies while newly posted threads that have little/no replies drop off pretty quickly. If there were a way to sort by new topics, it would mean I(and others) could quickly look at ALL threads created since last checking in, reducing the chance of something worthwhile falling through the cracks.