I think civility is the key, for both sides.
I've started kickstarting when Larian did Original Sin. It was a really impressive story; they really delivered on almost every goal, and the fans weren't in riot over the missing feature (such as day and night cycle).
I find the prevalent attitude of "kinda like online shopping" towards KS really confusing. Development is risky, so the end result is never guaranteed. If you can't accept that, then don't back - buy the finished product instead... IF it ever gets done, that is.