I like it! I visit a couple of message boards, and this one is unique in its revival of old threads (mind you, it's unique for more than that!). I was away for quite a few months a while back, and it's fun to see some of the interesting stuff that was discussed while I was gone

Oh, and I would find any thread that's been inactive more than a month or two to be "old", but only because of the nature of the forum...there are so many new threads started every day. I like when the really old stuff pops up again, like from early 2003, 2002 etc...