Commerce and Content Extension Policy Updates

@jbulava I was just reviewing the commerce policy for extensions, specifically 5.2–“Extensions may not allow items to be exchanged for money or other commerce instruments.” How is it possible for Spring to offer a “sell in twitch service” if items in exchange for money is not allowed?
With this in mind, is it possible for an extension to provide product shopping cart functionality with credit card checkout? Basically allowing streamers to sell their merch in-stream.