Ah, new website and that official announcement, cool :). The nightly builds aren't linked any more, though - it's been very helpful having user feedback from those, so I'd like to see that link posted again. It also looks like the forums don't have a favicon any more, and cookies got invalidated, but those are more minor issues.
As for the CC-BY-SA license: first of all, the "SA" bit means that even if we put the game behind a paywall (which is a silly thing to do in the first place), the first person to purchase the game would have access to the full source, and could distribute it for free. So that doesn't really make sense. Second, it was actually Whales who chose the CC-BY-SA license; we're just following his lead (since, y'know, primary author and all).
In terms of Kickstarter funding goals: the goals we're looking at are basically just enough to let me work on Cataclysm full-time without worrying about things like rent and food. So, don't worry about us trying to gouge the players, that's not our intent. We're just trying to accelerate the pace at which we can make Cataclysm more awesome :).