It's a GOOD problem for people to have to actually put some work into a project on their end before coming to the community and asking for money.
Like has been said better by others above, ideas are a dime a dozen. People who have put forth a great deal of up-front effort on their own to get their idea to at least a presentable stage, even if it presently looks like crap, should have a better time getting funded. It shows that they are serious, at least basically capable, and can actually produce /something/.
Anybody who pays someone on KS, IGG, or any other crowdfunding project based solely on an idea pitch is pissing their money away in the vast majority of cases.
I have some plans to do crowdfunded projects in the near future, but I am not even looking into it seriously until I have something at least marginably playable so people to be able to get some idea of what is being done and where I want to take it. It also helps me get a basic idea of what kind of effort it is going to take to get the project realized and what it may cost.