It's time for a reality check on crowdfunding for business startups: only use when necessary, because - even though it has good short-term income, it does not provide enough long-term income. When we put it into perspective, crowdfunding is an excellent tool for individual projects, but it should not be a significant source of funding for businesses.
I really find that crowdfunding is best for those individuals who're doing private projects or their own freelancing motives. But, as for a business, I'm a bit skiddish for many reasons...