It's awesome that you already uploaded the new release with my suggestion in it.
What I meant was that there would be an option to delay the time the threads were moved.
For instance, if you have a help forum on your board and someone posts a thread to ask for help with something, and then their problem is solved so you want to close the thread, but you want to make sure that they see the response first, you could delay the time period before it would be sent to the recycle bin (i.e. three days). It would be nice to have this as a global option for the whole hack.