Absolutely nothing, and we encourage you to do so! Build your own products with our data and monetize it how you see fit, no credit to Styvio required. We are developers first so do with our data what you want. We plan on making revenue by offering premium services to non-developers who simply want to use our charting and sentiment features. The API is a nice gesture to users.
That's highly unlikely. Data brokers that lend out data to you from exchanges make sure end users are just retail and make you sign a bunch of forms just to access basic lit pool data.