The big advantage of declarative frameworks (not just React - many are moving in this direction) is that reasoning about your application's state becomes much easier. This is because when you take a declarative approach, your application's state is kept separate from the DOM, and the DOM is a function of the application's state.
Thanks man! It's possible, you just have to build an API endpoint to store the results across users. There's a section in the README on that - it shouldn't be too hard :-)
We also wanted there to be an A/B testing framework that works declaratively, the same way React does.
We'll be watching this thread for comments, questions, and feedback.
We plan to keep building this out, especially if there's a decent amount of interest in this approach to A/B testing.
Thanks for the feedback, and thanks for sharing.