I created a modest Genius API (http://genius-api.com/ http://genius-api.com/) when these guys had nothing out there, but still keen to try out their own creatio

I created a modest Genius API (http://genius-api.com/ http://genius-api.com/) when these guys had nothing out there, but still keen to try out their own creation. I do wonder though how they will react to people using the API to make money off a webpage or an app.