As soon as someone says "We need X amount of money to do Y", you have to look into exactly who they are and why they need it and what they'll do with it. Those Kickstarter projects that are basically "We'd like to make an indie game that does X" really annoy me. You do? Bugger off and do it then!
I'm one of those developers who is saying "I need X to do Y". Who also just happens to be working on an indie game. Who also just happens to be using Kickstarter to fund our second stage of development. You know why I know what resources I need? I've been working in the startup industry for the last 25 years.
Kickstarter is fairly picky about projects they let in. These days you have to either talk a good game, or really show a working proof of concept. Yeah, a few stinkers get through, but I've backed 21 projects so far, and not a single one has failed (admitedly only 3 are software). YMMV, but don't assume a group of developers are full of it because they're using Kickstarter as a funding option. It's an excellent way to guage interest and spur innovation, even if you've never heard of them before.
Look at the project, determine if it *is* possible based on it's merits and the current technology available, investigate the people involved as much as possible and treat it like a high risk investment that might just get you a t-shirt and a nifty piece of software.