Hmm I think this thread is because many "new" members have been bumping very very old threads, some 1 + years old! Well this is just what I think..
I've noticed that, and I think the "Similar threads" box at the bottom is to blame. There are five, ordered by date, but this feature can bring up some really old threads. Maybe if it was restricted to similar threads created this year, that would help?
Just an example http://forums.digitalpoint.com/showthread.php?t=207 < hopefully this one has been closed
We have a winner! You hit the nail on the head. Feel free to get a FREE listing in the KingBloom Directory just for that! Just list your site, "don't (do not) pay for it, and let me know what you listed and I will upgrade it for free!