1: Won't sell any data, ever. Bootstrapped for now, user funded once we scaled up. We might temporary suspend signups at a point to ensure uninterrupted service.
2a: Good callout, will update the site with future plans!
2b: We're actively working on making content exportable, so you'll be able to take all of your stuff. No short term OSS plans, but might consider down the road!
Appreciate the questions!