I can add such a feature.

A simple feature to let users rate posts from other members.

By providing feedback on posts members can help identify the best and worst posts in a thread allowing future visitors to easily hone in on the best information.

customisable options allow

- Yes/No or Ten Point rating scale options.
- Possibility to turn off negative ratings for a positive only system.
- The ability to decide which forums are open for helpful answer ratings.
- The ability to audit the system and identify top users and potential abusers.
- The ability to ban specific members from using the system.
- Integration with the reputation system based on post ratings.
- Integration with a user's profile to display post rating history.

I am busy right now, but i will implement this as soon as i get time