[boatdesign]

My favorite 3.x solution was a mod that gave a clear warning on old threads but still allowed users to post if they clicked a checkbox stating something like "I'm aware this is an old thread"
That way when there is that thread that someone has relevant information on, they can still post it, but people don't accidentally bump threads without realizing they're really old.

I do like the per forum and group options of this mod though.