Awesome work Xeroc!, Piston is really becoming the powerhouse behind Steem.
Imagine the network effect once redditors start posting about the fact that they are making money from the same old post the put on reddit... it wont take long and reddit will need to develop a similar tool to retain new and interesting information that has otherwise migrated to Steemit!
That's actually the idea beind Streemian.com .. It has a reddit-crossposter already implemented and currently under beta testing .. Also, people can continue using medium but they can opt-in to have their posts appear on steemit automatically .. :)