What do mini-drones, gills for people, coolers with speakers, shoes with magnets and a home 3D printer have in common?
All were notorious crowdfunding failures.
Reasons for the failures included embezzlement, disappearance (with all the money it raised), delivery delays/failures,technological impossibility and non-functionality.
Most “donors” lost their money, although Indiegogo did require the gill company to return funds.
Since the web portals typically don’t enforce either their terms of service or a company’s promises, it will be up to the funders to litigate fraudulent crowdfunding entities.