The temptation to "necro bump" is too great, sometimes. I mean hot chicks die, too. What's wrong with having sex with them while they're still warm? Also, resurecting old threads is a weakness of mine. Who's to say when a thread is dead? You? Me? Rev. Jessie Jackson? Sometimes an old topic goes on for years (ie: the post your mind thread). Sometimes a new topic dies too soon (ie: the Twitter 2.0 thread). If someone brings a thread that died five months ago, is that wrong?
I say that any threads that are more than a year old should be locked automatically (if nobody posts in them for more than six months). Any thread that somebody wants to bring back should be approved by a mod, first. Who's with me?