It is indeed a stated feature.
excerpt from
http://bcsengineering.com/store/product.php?productid=76&cat=0&page=1
:
Admin Features:- Automatic points system. It will give points when an order is processed or completed. Will also take away points for an order that is later set to Declined, failed, etc
- General overall points collection rate for the store configurable on a per membership basis.
- Ability to have different points for different products that over-rides the general points rate.
- Give and take away customer points for any reason with a notes area to leave yourself a note (great for rewarding filling out surveys, signing up for membership, reviewing a product, etc)
- Ability to specify which products are not allowed to be paid for with points
- Able to display customer's points from any template.
- Running user log of when points were added/subtracted and for what reason
Customer Features:- Customer can see the points he/she has earned by clicking on modify profile (or anywhere else on the store you decide to display it).
- Customer has the option to pay with points.
- Paying with points is selectable like any other payment method.
- Customers can mix and match paying with points and cash/credit card.
- Customers can view the amount of points earned per order and used per order in their order history.