After a week, or even more time, a "question" thread will either have been answered, the person will either have found out by then from another source, no one knows the answer, or the person will have forgotten the question. I find the likelihood that someone is still searching the answer for something a week later, slim.

Personally, I would rather my question get unanswered, and try on another forum, than have a bunch of idiots bump up old posts. That's just me.