Basically that's the idea, the threads auto close after some time without replies.
Depending on the forum, there could be a lot of threads you have to deal with in the short period of time. Having it automated would allow you to pay attention to other areas of the site better.Can't you just select and close them, or move them to an Archive forum?
Yes. In the past I've felt the need to have a modification to do the following types of things:It would work fine as a mod, just its something that tends to be commonly used (mostly for support sites).
I had people bumping topics from 1-2 years ago, and that got annoying.