Toptal selection is flawed exactly in the same way many tech hiring processes are: they heavily bias against people who are busy enough not to be able to fit 1-

Toptal selection is flawed exactly in the same way many tech hiring processes are: they heavily bias against people who are busy enough not to be able to fit 1-3 weeks long unpaid projects into their schedule. Sure, it weeds out incompetent people, but that's not the same as selecting top people.