What measures does Kickstarter have to prevent scams where people take the money and run? Easy money will attract scams. It's only a matter of time before we hear someone made 500K and heading off on a vacation.
Not that I want to be painted as another node.js nut but if you're going to do a javascript client single page app why even bother with Flask/Python on the server? Express is simpler.
I don't mind "startup salary" if I like the technologies and believe in the product and more importantly the people. I make half what I used to make in a corporate environment but I love what I do and the people are as and more talented than I.
If I don't believe so much in the product or the people, then it's just another job. Equity is a non factor and the salary must be commensurate with my experience.