Re: it's the US...
"You think that Kickstarter is just as bad as IndieGoGo?"
Yes. Yes, I do.
"Kickstarter require a feasible, working prototype"
In theory. Whereas, in practice it is "You MUST have a working prototype (but absolutely nobody will ever bother you actually asking for one should you have none - we certainly won't, not even if expressly notified of that)"
"do, at least, listen when there are significant complaints or the media get involved"
FTFY.
"Think of an idea that everyone loves the idea of but is on the very outer bounds of possibility - you don't need any way of actually making it."
How many "free energy" projects running right now on KS do you want me to link to call that bullshit? Think of a number, any number...