1. Bummer. I'm sincerely sorry you're so frustrated, and I'm sorry to lose you as a player. Our next game is totally going to suck, though, so don't worry about missing out.
2. The "Sharing" quest thing is a known bug. If you look around the forums, you'll see that (A) I'm sorry about this, and we're going to fix it as soon as we can, and (B) it's an insignificant quest - you can just ignore that guy forever, and still finish the game.
3. Which building is the scientist asking you to build that you don't have a blueprint for? I'd be happy to help with this.