Advice: Helpful post mod

Tablet PC Questions is a technical support forum. Most people land on the site, look at a page, and move on. Some register, never post, and never come back. Some register, post their question, and move on.

I would like feedback on the posts to figure out how to help people who land.

Some sites have "was this post helpful?" type of questions at the bottom. Is there a modification for vBulletin which does the same? This might help me figure out how to get more people to interact with each other.

Thank you for any advice.

I missed the new mod on vbulletin.org site, on January 12, a mod is available which might help. I'll let everyone know.