Don't get me wrong Star Citizen has come a long way, I can't even imagine the amount of work it took to get CryEngine to scale to up to such large areas for us to explore. I really want this game to succeed. That being said, I predict they will have some problems implementing other aspects of the game.
This is such a ambitious game so I will focus my discussion on one game mechanic and persistence surrounding that mechanic, mining. Eventually, your suppose to be able to use your mining ships for their intended purpose. Although I don't own any ships with that role, I feel it will be the backbone to the economy which will lead to actual player created things to do with your friends. Does anybody know how the persistence will tie into mining? If hundreds of players are tearing up a hillside on a planet will it change the shape of a planet forever? I see them having an issue with this since most of the planets surface uses procedural generation. The game also starts getting larger when you start changing what it looks like. I'm not a programmer, but my brain is having a hard time wrapping itself around how this one aspect of the game is going to work. If they can pull something like this off in a stable build it would be a morale boost for me.
I hope they get mining working soon. Once it's working I think it will kick start an actual economy and player driven gameplay that doesn't seem very shallow. An example could be one organization secretly hiring bad guys (pirates) to hinder competition by attacking another mining operation. This would cause the other to hire some good guys for protection. Maybe the good guys and pirates are working together to extort money from the miners so they're really all bad? At the very least you could be transporting or protecting goods for your friends in your org instead of for a kiosk. Anyhow, I think the core of the economy mechanics will be "Joe the Miner."
Do you guys with ships have any thoughts on how the mining game mechanics and persistence will work?