Just because a thread has fallen out of use doesn't mean the topic is no longer of interest to anyone. I won't start a new thread when there is an existing thread that can be bumped back up to the top, otherwise the information on the topic is broken up into multiple threads and people have to dig to find what they want to know. Most forums merge threads with similar topics anyway so resurrecting the old threads saves the mods some work when there gets to be too many. And with the low traffic here, a two year old thread may only be the 4th or 5th one down the queue.