Kickstarter has a very interesting, pleasant premise; let gamers choose to fund the games that they want, allowing developers to create without needing a publisher. However, the idea isn't without its pitfalls. Many projects get cancelled and there is a lack of obligation for developers to follow-through. Luckily, there are steps you can take to increase your odds of backing a true winner.
First and foremost, you need to make sure that the idea isn't too ambitious for the developer. Watch out for small and one-man developers that use words like "open world" and "procedurally generating"; these are things that small teams normally lack the resources and man-power to complete. Projects like that aren't likely to get completed within funding (Or in the "Cult: Awakening" case, not making it with SEVEN HUNDRED PERCENT funding).
Once you've established that, understand the developer's history. A developer with the experience is more likely to know their limits and have realistic goals. With experience, a developer is more likely to make a competent product and on-time.
They might be capable of knowing how long a game will take to develop, but what about you? It's a major plus if the developer provides a detailed timeline of when to expect parts of the game to be finished. If they fail to make many of those dates, you could have a strong case to ask for a refund from the not yet bankrupted developer.
Lastly, have an idea where the money is going. A developer should be expected to provide details on where the money is going. You might not want to give money to a developer that's expecting to spend too much on personal expenses or cocaine. It builds confidence in who you are backing to know that they have a professional understanding of what to do with the money.
*Don't give to small/one-man development teams that use words like "open world" and "procedurally generated" that indicate a project too ambitious for them to handle
*Only give to those with experience developing professional products
*Only give to those that have a very detailed timeline
*Only give to those that have a very detailed breakdown of what the money is for
"If the problems are severe enough that the creator can't fulfill their project, creators need to find a resolution. Steps ***could*** [AKA, no specific obligation as to how to "fix" the situation] include offering refunds, ***detailing exactly how funds were used*** [AKA just saying "LOL, spent it all on rent, sry"], and other actions to satisfy backers."