I've just realized that you will competition with outsource companies. India, Russia, Ukraine and other countries with developers resources have many companies, that resell human hours work. With ELL devs will earn more and work less, or even work more and earn much more)
But you didn't notice one thing. Corporations won't use ELL platform, because there won't be any contract or third parties, who controls all processes.
I agree with you. But the fact that this will give people work without leaving home and without intermediaries will be very cool I think people will appreciate it. Since it will be beneficial to all but mediators.