Spend way too much time. I usually go through the GD posts when I get home, then check out some of the other forums, then check back to see anything new as I go about doing other stuff. It was even worse on the old site when my wife was working overseas, I would check the board all freekin day.
Of course things were bad when it was just this site, now I have marbles and all the candyland shockwave games sucking up all my time.
Late night is all DFLW on weekends and vacation though when Novaworld isn't down, which seems to be less and less.